diff --git a/src/api/baidu/mapQuote.ts b/src/api/baidu/mapQuote.ts
index 3a22e0b..1e5339d 100644
--- a/src/api/baidu/mapQuote.ts
+++ b/src/api/baidu/mapQuote.ts
@@ -1,7 +1,12 @@
 import type { IntradayPoint, QuoteData, TradeTick } from '../../types'
-import { contractConfig } from '../../config/contract'
 import type { BaiduQuotationResult } from './types'
 
+export type QuoteFallback = {
+  name: string
+  code: string
+  exchange: string
+}
+
 function toNum(value: string | number | undefined | null, fallback = 0): number {
   if (value == null || value === '' || value === '--') return fallback
   if (typeof value === 'number') return Number.isFinite(value) ? value : fallback
@@ -75,7 +80,10 @@ function parseTrades(result: BaiduQuotationResult): TradeTick[] {
   }))
 }
 
-export function mapBaiduQuotationToQuote(result: BaiduQuotationResult): QuoteData {
+export function mapBaiduQuotationToQuote(
+  result: BaiduQuotationResult,
+  fallback: QuoteFallback,
+): QuoteData {
   const op = result.pankouinfos?.origin_pankou
   const cur = result.cur
   const basic = result.basicinfos
@@ -121,9 +129,9 @@ export function mapBaiduQuotationToQuote(result: BaiduQuotationResult): QuoteDat
   )
 
   return {
-    name: basic?.name || contractConfig.name,
-    code: basic?.code || contractConfig.code,
-    exchange: basic?.exchange || contractConfig.exchange,
+    name: basic?.name || fallback.name,
+    code: basic?.code || fallback.code,
+    exchange: basic?.exchange || fallback.exchange,
     status: update?.stockStatus || '未知',
     last: toNum(cur?.price ?? op?.currentPrice),
     change: toNum(cur?.increase),
diff --git a/src/api/baidu/ws.ts b/src/api/baidu/ws.ts
index 74ceeb0..8e98b71 100644
--- a/src/api/baidu/ws.ts
+++ b/src/api/baidu/ws.ts
@@ -1,4 +1,4 @@
-import { contractConfig } from '../../config/contract'
+import { useContractStore } from '../../stores/contract'
 import type { BaiduWsItem, BaiduWsMessage, BaiduWsOutbound } from './wsTypes'
 
 const PING_MS = 6_000
@@ -26,9 +26,10 @@ export type BaiduQuoteWsHandlers = {
 }
 
 function buildItem(): BaiduWsItem {
+  const c = useContractStore().current
   return {
-    code: contractConfig.code,
-    name: contractConfig.name,
+    code: c.code,
+    name: c.name,
     market: 'ab',
     financeType: 'futures',
   }
diff --git a/src/components/header/AppHeader.vue b/src/components/header/AppHeader.vue
index fb2dd72..0ba91ba 100644
--- a/src/components/header/AppHeader.vue
+++ b/src/components/header/AppHeader.vue
@@ -19,18 +19,39 @@
       <span class="time">更新 {{ quote.updatedAt }}</span>
     </div>
     <div class="actions">
-      <el-button :icon="Setting" circle title="设置" @click="settingsVisible = true" />
+      <el-button :icon="Setting" circle title="AI 设置" @click="settingsVisible = true" />
+      <el-select
+        class="contract-select"
+        :model-value="selectedId"
+        placeholder="选择合约"
+        size="default"
+        @change="onContractChange"
+      >
+        <el-option
+          v-for="c in contracts"
+          :key="c.id"
+          :label="`${c.name} (${c.code})`"
+          :value="c.id"
+        />
+      </el-select>
+      <el-button title="合约设置" @click="contractSettingsVisible = true">合约</el-button>
     </div>
     <SettingsDialog v-model="settingsVisible" />
+    <ContractSettingsDialog v-model="contractSettingsVisible" />
   </div>
 </template>
 
 <script setup lang="ts">
 import { computed, ref } from 'vue'
+import { storeToRefs } from 'pinia'
 import { Setting } from '@element-plus/icons-vue'
+import { ElMessage } from 'element-plus'
 import type { QuoteData } from '../../types'
 import type { WsConnectionStatus } from '../../api/baidu/ws'
 import SettingsDialog from './SettingsDialog.vue'
+import ContractSettingsDialog from './ContractSettingsDialog.vue'
+import { useContractStore } from '../../stores/contract'
+import { useQuotaStore } from '../../stores/quota'
 
 const props = defineProps<{
   quote: QuoteData
@@ -39,6 +60,18 @@ const props = defineProps<{
 }>()
 
 const settingsVisible = ref(false)
+const contractSettingsVisible = ref(false)
+
+const contractStore = useContractStore()
+const quota = useQuotaStore()
+const { contracts, selectedId } = storeToRefs(contractStore)
+
+async function onContractChange(id: string) {
+  if (!id || id === selectedId.value) return
+  contractStore.select(id)
+  await quota.reloadForContract()
+  ElMessage.success('已切换合约')
+}
 
 const priceClass = computed(() =>
   props.quote.change >= 0 ? 'price-up' : 'price-down',
@@ -175,5 +208,12 @@ function formatSigned(n: number) {
 
 .actions {
   margin-left: auto;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.contract-select {
+  width: 180px;
 }
 </style>
diff --git a/src/components/header/ContractSettingsDialog.vue b/src/components/header/ContractSettingsDialog.vue
new file mode 100644
index 0000000..2972a32
--- /dev/null
+++ b/src/components/header/ContractSettingsDialog.vue
@@ -0,0 +1,236 @@
+<template>
+  <el-dialog
+    :model-value="modelValue"
+    title="合约设置"
+    width="760px"
+    destroy-on-close
+    @update:model-value="emit('update:modelValue', $event)"
+  >
+    <div class="toolbar">
+      <el-button type="primary" @click="startAdd">新增合约</el-button>
+    </div>
+
+    <el-table :data="contracts" size="small" stripe empty-text="暂无合约">
+      <el-table-column label="当前" width="64" align="center">
+        <template #default="{ row }">
+          <el-radio
+            :model-value="selectedId"
+            :value="row.id"
+            @change="onSelect(row.id)"
+          />
+        </template>
+      </el-table-column>
+      <el-table-column prop="name" label="名称" min-width="100" />
+      <el-table-column prop="code" label="代码" width="90" />
+      <el-table-column prop="variety" label="品种" width="70" />
+      <el-table-column prop="exchange" label="交易所" width="90" />
+      <el-table-column prop="largeOrderLots" label="大单阈值" width="88" />
+      <el-table-column prop="keywords" label="关键字" min-width="120" show-overflow-tooltip />
+      <el-table-column label="操作" width="140" fixed="right">
+        <template #default="{ row }">
+          <el-button link type="primary" @click="startEdit(row)">编辑</el-button>
+          <el-button
+            link
+            type="danger"
+            :disabled="contracts.length <= 1"
+            @click="onRemove(row.id)"
+          >
+            删除
+          </el-button>
+        </template>
+      </el-table-column>
+    </el-table>
+
+    <el-dialog
+      v-model="formVisible"
+      :title="editingId ? '编辑合约' : '新增合约'"
+      width="420px"
+      append-to-body
+      destroy-on-close
+    >
+      <el-form label-position="top">
+        <el-form-item label="合约代码" required>
+          <el-input
+            v-model="form.code"
+            placeholder="如 FG609"
+            @blur="onCodeBlur"
+          />
+        </el-form-item>
+        <el-form-item label="展示名称" required>
+          <el-input v-model="form.name" placeholder="如 玻璃2609" />
+        </el-form-item>
+        <el-form-item label="品种代码">
+          <el-input v-model="form.variety" placeholder="缺省从代码前缀推导" />
+        </el-form-item>
+        <el-form-item label="交易所">
+          <el-input v-model="form.exchange" placeholder="如 郑商所" />
+        </el-form-item>
+        <el-form-item label="大单手数阈值">
+          <el-input-number
+            v-model="form.largeOrderLots"
+            :min="1"
+            :max="999999"
+            :step="10"
+            controls-position="right"
+          />
+        </el-form-item>
+        <el-form-item label="合约关键字">
+          <el-input
+            v-model="form.keywords"
+            type="textarea"
+            :rows="3"
+            placeholder="如：当前持仓、止损位、关注看点；AI 分析时追加在全局「额外关键字」之后"
+          />
+        </el-form-item>
+      </el-form>
+      <template #footer>
+        <el-button @click="formVisible = false">取消</el-button>
+        <el-button type="primary" @click="saveForm">保存</el-button>
+      </template>
+    </el-dialog>
+  </el-dialog>
+</template>
+
+<script setup lang="ts">
+import { reactive, ref } from 'vue'
+import { storeToRefs } from 'pinia'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import { useContractStore, DEFAULT_CONTRACT } from '../../stores/contract'
+import { useQuotaStore } from '../../stores/quota'
+import { extractVariety } from '../../utils/tradingDate'
+import type { ContractItem } from '../../types'
+
+defineProps<{
+  modelValue?: boolean
+}>()
+const emit = defineEmits<{
+  'update:modelValue': [value: boolean]
+}>()
+
+const contractStore = useContractStore()
+const quota = useQuotaStore()
+const { contracts, selectedId } = storeToRefs(contractStore)
+
+const formVisible = ref(false)
+const editingId = ref<string | null>(null)
+const form = reactive({
+  code: '',
+  name: '',
+  variety: '',
+  exchange: '',
+  largeOrderLots: DEFAULT_CONTRACT.largeOrderLots,
+  keywords: '',
+})
+
+function resetForm(seed?: Partial<ContractItem>) {
+  form.code = seed?.code || ''
+  form.name = seed?.name || ''
+  form.variety = seed?.variety || ''
+  form.exchange = seed?.exchange || ''
+  form.largeOrderLots = seed?.largeOrderLots || DEFAULT_CONTRACT.largeOrderLots
+  form.keywords = seed?.keywords || ''
+}
+
+function startAdd() {
+  editingId.value = null
+  resetForm({
+    exchange: DEFAULT_CONTRACT.exchange,
+    largeOrderLots: DEFAULT_CONTRACT.largeOrderLots,
+  })
+  formVisible.value = true
+}
+
+function startEdit(row: ContractItem) {
+  editingId.value = row.id
+  resetForm(row)
+  formVisible.value = true
+}
+
+function onCodeBlur() {
+  const code = form.code.trim().toUpperCase()
+  form.code = code
+  if (!form.variety.trim() && code) {
+    form.variety = extractVariety(code)
+  }
+  if (!form.name.trim() && code) {
+    form.name = code
+  }
+}
+
+async function onSelect(id: string) {
+  if (id === selectedId.value) return
+  contractStore.select(id)
+  await quota.reloadForContract()
+  ElMessage.success('已切换合约')
+}
+
+async function onRemove(id: string) {
+  try {
+    await ElMessageBox.confirm('确定删除该合约？', '提示', { type: 'warning' })
+  } catch {
+    return
+  }
+  const wasSelected = id === selectedId.value
+  if (!contractStore.remove(id)) {
+    ElMessage.warning('至少保留一个合约')
+    return
+  }
+  ElMessage.success('已删除')
+  if (wasSelected) {
+    await quota.reloadForContract()
+  }
+}
+
+function saveForm() {
+  const payload = {
+    code: form.code.trim(),
+    name: form.name.trim(),
+    variety: form.variety.trim(),
+    exchange: form.exchange.trim(),
+    largeOrderLots: form.largeOrderLots,
+    keywords: form.keywords.trim(),
+  }
+  if (!payload.code) {
+    ElMessage.warning('请填写合约代码')
+    return
+  }
+  if (!payload.name) {
+    ElMessage.warning('请填写展示名称')
+    return
+  }
+
+  if (editingId.value) {
+    const id = editingId.value
+    const prev = contracts.value.find((c) => c.id === id)
+    const wasCurrent = id === selectedId.value
+    const identityChanged =
+      !!prev &&
+      (prev.code !== payload.code.toUpperCase() ||
+        (prev.variety || '') !== (payload.variety.toUpperCase() || prev.variety))
+    if (!contractStore.update(id, payload)) {
+      ElMessage.error('保存失败')
+      return
+    }
+    formVisible.value = false
+    ElMessage.success('已更新')
+    if (wasCurrent && identityChanged) {
+      void quota.reloadForContract()
+    }
+    return
+  }
+
+  const item = contractStore.add(payload)
+  if (!item) {
+    ElMessage.error('保存失败')
+    return
+  }
+  formVisible.value = false
+  ElMessage.success('已新增')
+}
+</script>
+
+<style scoped>
+.toolbar {
+  margin-bottom: 12px;
+}
+</style>
diff --git a/src/components/quote/LargeOrderAnalysis.vue b/src/components/quote/LargeOrderAnalysis.vue
index a5377e2..a302568 100644
--- a/src/components/quote/LargeOrderAnalysis.vue
+++ b/src/components/quote/LargeOrderAnalysis.vue
@@ -27,13 +27,14 @@
 
 <script setup lang="ts">
 import { computed } from 'vue'
+import { storeToRefs } from 'pinia'
 import { use } from 'echarts/core'
 import { CanvasRenderer } from 'echarts/renderers'
 import { PieChart } from 'echarts/charts'
 import { TooltipComponent } from 'echarts/components'
 import type { EChartsOption } from 'echarts'
 import VChart from 'vue-echarts'
-import { contractConfig } from '../../config/contract'
+import { useContractStore } from '../../stores/contract'
 import type { QuoteData, TradeTick } from '../../types'
 
 use([CanvasRenderer, PieChart, TooltipComponent])
@@ -42,7 +43,8 @@ const props = defineProps<{
   quote: QuoteData
 }>()
 
-const threshold = contractConfig.largeOrderLots
+const { current } = storeToRefs(useContractStore())
+const threshold = computed(() => current.value.largeOrderLots)
 
 const COLORS = {
   largeBuy: '#f0435c',
@@ -59,14 +61,14 @@ interface Bucket {
   pct: string
 }
 
-function aggregate(trades: TradeTick[]) {
+function aggregate(trades: TradeTick[], lots: number) {
   let largeBuy = 0
   let largeSell = 0
   let retailBuy = 0
   let retailSell = 0
 
   for (const t of trades) {
-    const isLarge = t.volume > threshold
+    const isLarge = t.volume > lots
     if (t.side === 'B') {
       if (isLarge) largeBuy += t.volume
       else retailBuy += t.volume
@@ -121,7 +123,7 @@ function toItems(
   return { buyItems, sellItems, data: [...buyItems, ...sellItems] }
 }
 
-const stats = computed(() => toItems(aggregate(props.quote.trades)))
+const stats = computed(() => toItems(aggregate(props.quote.trades, threshold.value)))
 const buyItems = computed(() => stats.value.buyItems)
 const sellItems = computed(() => stats.value.sellItems)
 
diff --git a/src/composables/useAiAdvice.ts b/src/composables/useAiAdvice.ts
index c67bf63..fe50436 100644
--- a/src/composables/useAiAdvice.ts
+++ b/src/composables/useAiAdvice.ts
@@ -4,10 +4,20 @@ import type { AiAdvice } from '../types'
 import { fetchDeepSeekAdvice } from '../api/deepseek/analyze'
 import type { AiAnalysisPayload } from '../api/deepseek/types'
 import { useQuotaStore, type KlinePeriod } from '../stores/quota'
+import { useContractStore } from '../stores/contract'
 import { useSettingsStore } from '../stores/settings'
 import { isWsTradingSession } from '../utils/tradingDate'
 import { useTitleBlink } from './useTitleBlink'
 
+/** 全局额外关键字 + 当前合约关键字（合约段追加在后） */
+function mergeKeywords(globalKeywords: string, contractKeywords: string): string {
+  const global = globalKeywords.trim()
+  const extra = contractKeywords.trim()
+  if (!extra) return global
+  if (!global) return extra
+  return `${global}\n${extra}`
+}
+
 const KLINE_PERIODS: KlinePeriod[] = ['day', 'week', 'month']
 
 /** 调度轮询间隔：检查距上次执行是否已超过设定分钟 */
@@ -31,11 +41,29 @@ export function useAiAdvice() {
   /** 上次成功执行分析的时间戳（ms） */
   const lastExecutedAt = ref<number | null>(null)
   const quota = useQuotaStore()
+  const contractStore = useContractStore()
   const settings = useSettingsStore()
 
   useTitleBlink(data)
 
   let scheduleTimer: ReturnType<typeof setInterval> | null = null
+  /** 切换合约时递增，丢弃进行中的旧分析结果 */
+  let analysisEpoch = 0
+
+  function clearAdvice() {
+    data.value = emptyAdvice()
+    error.value = null
+    lastExecutedAt.value = null
+  }
+
+  watch(
+    () => contractStore.selectedId,
+    () => {
+      analysisEpoch += 1
+      loading.value = false
+      clearAdvice()
+    },
+  )
 
   /** 尽量补全日/周/月 K 线，失败不阻断主流程 */
   async function ensureKlines() {
@@ -66,30 +94,37 @@ export function useAiAdvice() {
     }
     if (loading.value) return
 
+    const epoch = analysisEpoch
     loading.value = true
     error.value = null
     try {
       await quota.fetchForAnalysis()
+      if (epoch !== analysisEpoch) return
       await ensureKlines()
+      if (epoch !== analysisEpoch) return
 
       const payload: AiAnalysisPayload = {
-        keywords: settings.keywords,
+        keywords: mergeKeywords(settings.keywords, contractStore.current.keywords),
         snapshot: quota.getAnalysisSnapshot(),
       }
 
       console.log('[AI] 提交给 DeepSeek 的关键词', payload.keywords)
       console.log('[AI] 提交给 DeepSeek 的数据快照', payload.snapshot)
 
-      data.value = await fetchDeepSeekAdvice(apiKey, payload)
+      const advice = await fetchDeepSeekAdvice(apiKey, payload)
+      if (epoch !== analysisEpoch) return
+
+      data.value = advice
       lastExecutedAt.value = Date.now()
       if (!silent) ElMessage.success('AI 建议已更新')
     } catch (e) {
+      if (epoch !== analysisEpoch) return
       error.value = e
       const msg = formatError(e)
       console.error('[AI] 一键获取建议失败', e)
       if (!silent) ElMessage.error(msg)
     } finally {
-      loading.value = false
+      if (epoch === analysisEpoch) loading.value = false
     }
   }
 
diff --git a/src/config/contract.ts b/src/config/contract.ts
index 753d60f..bdfb1f8 100644
--- a/src/config/contract.ts
+++ b/src/config/contract.ts
@@ -1,16 +1,5 @@
-/** 当前关注的期货合约（后续可改为可切换） */
-export const contractConfig = {
-  /** 合约代码，对应百度行情 / 同花顺持仓接口 code/contract */
-  code: 'FG609',
-  /** 品种代码，持仓接口 variety；缺省可从 code 字母前缀推导 */
-  variety: 'FG',
-  /** 展示名称；接口未返回 name 时使用 */
-  name: '玻璃2609',
-  /** 交易所展示名 */
-  exchange: '郑商所',
-  /**
-   * 大单手数阈值：现手大于该值计为大单，否则计为散单。
-   * 用于分时成交「大单分析」饼图。
-   */
-  largeOrderLots: 100,
-} as const
+/**
+ * @deprecated 合约配置已迁至 localStorage（stores/contract.ts）。
+ * 此处仅保留默认种子，供首次安装与兼容引用。
+ */
+export { DEFAULT_CONTRACT } from '../stores/contract'
diff --git a/src/stores/contract.ts b/src/stores/contract.ts
new file mode 100644
index 0000000..6087bd5
--- /dev/null
+++ b/src/stores/contract.ts
@@ -0,0 +1,133 @@
+import { defineStore } from 'pinia'
+import { computed, ref, watch } from 'vue'
+import type { ContractItem, ContractStorage } from '../types'
+import { extractVariety } from '../utils/tradingDate'
+
+const STORAGE_KEY = 'ai-trade-contracts'
+
+/** 首次安装时的默认合约（原 config/contract.ts） */
+export const DEFAULT_CONTRACT: Omit<ContractItem, 'id'> = {
+  code: 'FG609',
+  variety: 'FG',
+  name: '玻璃2609',
+  exchange: '郑商所',
+  largeOrderLots: 100,
+  keywords: '',
+}
+
+function createId(): string {
+  return `c_${Date.now().toString(36)}_${Math.random().toString(36).slice(2, 8)}`
+}
+
+function normalizeItem(raw: Partial<ContractItem> & { code?: string }): ContractItem | null {
+  const code = String(raw.code || '').trim().toUpperCase()
+  if (!code) return null
+  const variety = String(raw.variety || '').trim().toUpperCase() || extractVariety(code)
+  const name = String(raw.name || '').trim() || code
+  const exchange = String(raw.exchange || '').trim() || ''
+  const lots = Number(raw.largeOrderLots)
+  const largeOrderLots =
+    Number.isFinite(lots) && lots > 0 ? Math.floor(lots) : DEFAULT_CONTRACT.largeOrderLots
+  const keywords = String(raw.keywords ?? '').trim()
+  return {
+    id: String(raw.id || createId()),
+    code,
+    variety,
+    name,
+    exchange,
+    largeOrderLots,
+    keywords,
+  }
+}
+
+function load(): ContractStorage {
+  try {
+    const parsed = JSON.parse(localStorage.getItem(STORAGE_KEY) || '{}') as Partial<ContractStorage>
+    const list = Array.isArray(parsed.contracts)
+      ? parsed.contracts.map((c) => normalizeItem(c)).filter((c): c is ContractItem => c != null)
+      : []
+    if (list.length === 0) {
+      const first = normalizeItem({ ...DEFAULT_CONTRACT, id: createId() })!
+      return { contracts: [first], selectedId: first.id }
+    }
+    const selectedId =
+      typeof parsed.selectedId === 'string' && list.some((c) => c.id === parsed.selectedId)
+        ? parsed.selectedId
+        : list[0].id
+    return { contracts: list, selectedId }
+  } catch {
+    const first = normalizeItem({ ...DEFAULT_CONTRACT, id: createId() })!
+    return { contracts: [first], selectedId: first.id }
+  }
+}
+
+export const useContractStore = defineStore('contract', () => {
+  const saved = load()
+  const contracts = ref<ContractItem[]>(saved.contracts)
+  const selectedId = ref(saved.selectedId)
+
+  const current = computed(() => {
+    const found = contracts.value.find((c) => c.id === selectedId.value)
+    return found ?? contracts.value[0]
+  })
+
+  watch(
+    [contracts, selectedId],
+    () => {
+      // 选中项失效时回落到第一项
+      if (!contracts.value.some((c) => c.id === selectedId.value) && contracts.value[0]) {
+        selectedId.value = contracts.value[0].id
+      }
+      const payload: ContractStorage = {
+        contracts: contracts.value,
+        selectedId: selectedId.value,
+      }
+      localStorage.setItem(STORAGE_KEY, JSON.stringify(payload))
+    },
+    { deep: true },
+  )
+
+  function select(id: string) {
+    if (!contracts.value.some((c) => c.id === id)) return
+    selectedId.value = id
+  }
+
+  function add(input: Omit<ContractItem, 'id'>): ContractItem | null {
+    const item = normalizeItem({ ...input, id: createId() })
+    if (!item) return null
+    contracts.value = [...contracts.value, item]
+    return item
+  }
+
+  function update(id: string, input: Partial<Omit<ContractItem, 'id'>>): boolean {
+    const idx = contracts.value.findIndex((c) => c.id === id)
+    if (idx < 0) return false
+    const merged = normalizeItem({ ...contracts.value[idx], ...input, id })
+    if (!merged) return false
+    const next = contracts.value.slice()
+    next[idx] = merged
+    contracts.value = next
+    return true
+  }
+
+  function remove(id: string): boolean {
+    if (contracts.value.length <= 1) return false
+    const next = contracts.value.filter((c) => c.id !== id)
+    if (next.length === contracts.value.length) return false
+    contracts.value = next
+    if (selectedId.value === id) {
+      selectedId.value = next[0].id
+    }
+    return true
+  }
+
+  return {
+    contracts,
+    selectedId,
+    current,
+    select,
+    add,
+    update,
+    remove,
+  }
+})
diff --git a/src/stores/quota.ts b/src/stores/quota.ts
index ab02c68..93413bd 100644
--- a/src/stores/quota.ts
+++ b/src/stores/quota.ts
@@ -1,7 +1,7 @@
 import { defineStore } from 'pinia'
 import { computed, ref, toRaw } from 'vue'
 import type { Candle, NewsItem, PositionsData, QuoteData } from '../types'
-import { contractConfig } from '../config/contract'
+import { useContractStore } from './contract'
 import { getStockKline, getStockQuotation } from '../api/baidu/quotation'
 import { getFuturesNews } from '../api/baidu/news'
 import { mapBaiduQuotationToQuote } from '../api/baidu/mapQuote'
@@ -52,10 +52,11 @@ function emptyCandles(): QuoteData['candles'] {
 }
 
 function emptyQuote(): QuoteData {
+  const c = useContractStore().current
   return {
-    name: contractConfig.name,
-    code: contractConfig.code,
-    exchange: contractConfig.exchange,
+    name: c.name,
+    code: c.code,
+    exchange: c.exchange,
     status: '',
     last: 0,
     change: 0,
@@ -98,6 +99,10 @@ function emptyPositions(): PositionsData {
   }
 }
 
+function activeContract() {
+  return useContractStore().current
+}
+
 export const useQuotaStore = defineStore('quota', () => {
   // ─── 行情 ───────────────────────────────────────────────
   const quote = ref<QuoteData>(emptyQuote())
@@ -129,7 +134,8 @@ export const useQuotaStore = defineStore('quota', () => {
       }
       return
     }
-    if (msg.data.code && msg.data.code !== contractConfig.code) return
+    const code = activeContract().code
+    if (msg.data.code && msg.data.code !== code) return
     const product = msg.data.product
     if (product === 'tick') {
       quote.value = applyWsTick(quote.value, msg.data as BaiduWsTickData)
@@ -224,11 +230,16 @@ export const useQuotaStore = defineStore('quota', () => {
   )
 
   async function fetchQuote() {
+    const c = activeContract()
     quoteLoading.value = true
     quoteError.value = null
     try {
-      const result = await getStockQuotation({ code: contractConfig.code })
-      const mapped = mapBaiduQuotationToQuote(result)
+      const result = await getStockQuotation({ code: c.code })
+      const mapped = mapBaiduQuotationToQuote(result, {
+        name: c.name,
+        code: c.code,
+        exchange: c.exchange,
+      })
       mapped.candles = emptyCandles()
       loadedKlines.value = { day: false, week: false, month: false }
       quote.value = mapped
@@ -248,11 +259,12 @@ export const useQuotaStore = defineStore('quota', () => {
       return quote.value.candles[period]
     }
 
+    const c = activeContract()
     klineLoading.value = true
     quoteError.value = null
     try {
       const result = await getStockKline({
-        code: contractConfig.code,
+        code: c.code,
         ktype: KTYPE_MAP[period],
       })
       const candles = mapBaiduKlineToCandles(result)
@@ -269,10 +281,11 @@ export const useQuotaStore = defineStore('quota', () => {
   }
 
   async function fetchNews() {
+    const c = activeContract()
     newsLoading.value = true
     newsError.value = null
     try {
-      const list = await getFuturesNews({ code: contractConfig.code })
+      const list = await getFuturesNews({ code: c.code })
       news.value = mapBaiduNewsToItems(list)
       newsLoaded.value = news.value.length > 0
     } catch (e) {
@@ -293,8 +306,9 @@ export const useQuotaStore = defineStore('quota', () => {
     positionsLoading.value = true
     positionsError.value = null
     try {
-      const contract = contractConfig.code
-      const variety = contractConfig.variety || extractVariety(contract)
+      const c = activeContract()
+      const contract = c.code
+      const variety = c.variety || extractVariety(contract)
       let date = getPositionQueryDate()
       let mapped: PositionsData | null = null
 
@@ -337,6 +351,27 @@ export const useQuotaStore = defineStore('quota', () => {
     await Promise.all([fetchQuote(), fetchNews(), fetchPositions()])
   }
 
+  /**
+   * 切换合约后：断开旧 WS、清空缓存、重新拉取并按需重连。
+   */
+  async function reloadForContract() {
+    quoteWs?.disconnect()
+    quoteWs = null
+    wsStatus.value = 'disconnected'
+
+    quote.value = emptyQuote()
+    news.value = []
+    positions.value = emptyPositions()
+    loadedKlines.value = { day: false, week: false, month: false }
+    newsLoaded.value = false
+    positionsLoaded.value = false
+    quoteError.value = null
+    newsError.value = null
+    positionsError.value = null
+
+    await fetchAll()
+  }
+
   /**
    * AI 分析前取数：行情每次重新拉取；
    * 新闻 / 机构持仓若已有成功数据则跳过，避免重复请求。
@@ -361,11 +396,12 @@ export const useQuotaStore = defineStore('quota', () => {
    * 返回深拷贝，避免分析过程中被行情刷新污染。
    */
   function getAnalysisSnapshot(): AnalysisSnapshot {
+    const c = activeContract()
     return {
       contract: {
-        code: quote.value.code || contractConfig.code,
-        name: quote.value.name || contractConfig.name,
-        exchange: quote.value.exchange || contractConfig.exchange,
+        code: quote.value.code || c.code,
+        name: quote.value.name || c.name,
+        exchange: quote.value.exchange || c.exchange,
       },
       quote: quote.value ? clonePlain(quote.value) : null,
       news: clonePlain(news.value),
@@ -402,6 +438,7 @@ export const useQuotaStore = defineStore('quota', () => {
     fetchPositions,
     fetchAll,
     fetchForAnalysis,
+    reloadForContract,
     getAnalysisSnapshot,
     enableWs,
     connectWs,
diff --git a/src/types/index.ts b/src/types/index.ts
index 5fa2d74..a6b3773 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -144,3 +144,32 @@ export interface AppSettings {
   /** 定时分析间隔（分钟） */
   scheduledAnalysisMinutes: number
 }
+
+/** 单个期货合约配置（可多份，存 localStorage） */
+export interface ContractItem {
+  id: string
+  /** 合约代码，对应百度行情 / 同花顺持仓接口 code/contract */
+  code: string
+  /** 品种代码，持仓接口 variety；缺省可从 code 字母前缀推导 */
+  variety: string
+  /** 展示名称；接口未返回 name 时使用 */
+  name: string
+  /** 交易所展示名 */
+  exchange: string
+  /**
+   * 大单手数阈值：现手大于该值计为大单，否则计为散单。
+   * 用于分时成交「大单分析」饼图。
+   */
+  largeOrderLots: number
+  /**
+   * 合约专属关键字（持仓/止损/看点等）。
+   * AI 分析时追加在全局「额外关键字」之后。
+   */
+  keywords: string
+}
+
+/** localStorage 中的合约列表与当前选中 */
+export interface ContractStorage {
+  contracts: ContractItem[]
+  selectedId: string
+}