diff --git a/src/api/baidu/mapWsQuote.ts b/src/api/baidu/mapWsQuote.ts
index 215bd4d..081b932 100644
--- a/src/api/baidu/mapWsQuote.ts
+++ b/src/api/baidu/mapWsQuote.ts
@@ -76,8 +76,9 @@ function upsertIntraday(
 /**
  * Merge tick detailinfos into quote.trades (newest first, dedupe, cap 200).
  * Mutates quote in place so Vue only invalidates trade-dependent effects.
+ * @returns newly inserted ticks (not already in quote.trades)
  */
-export function applyWsTick(quote: QuoteData, data: BaiduWsTickData): void {
+export function applyWsTick(quote: QuoteData, data: BaiduWsTickData): TradeTick[] {
   const incoming: TradeTick[] = [...(data.detailinfos ?? [])]
     .reverse()
     .map((t) => ({
@@ -87,6 +88,12 @@ export function applyWsTick(quote: QuoteData, data: BaiduWsTickData): void {
       side: t.bsFlag === 'B' ? 'B' : 'S',
     }))
 
+  const existingKeys = new Set(quote.trades.map(tradeKey))
+  const added: TradeTick[] = []
+  for (const t of incoming) {
+    if (!existingKeys.has(tradeKey(t))) added.push(t)
+  }
+
   const seen = new Set<string>()
   const merged: TradeTick[] = []
   for (const t of [...incoming, ...quote.trades]) {
@@ -97,6 +104,7 @@ export function applyWsTick(quote: QuoteData, data: BaiduWsTickData): void {
     if (merged.length >= MAX_TRADES) break
   }
   quote.trades = merged
+  return added
 }
 
 /**
diff --git a/src/components/header/AppHeader.vue b/src/components/header/AppHeader.vue
index 0ba91ba..a0dc7c7 100644
--- a/src/components/header/AppHeader.vue
+++ b/src/components/header/AppHeader.vue
@@ -34,7 +34,7 @@
           :value="c.id"
         />
       </el-select>
-      <el-button title="合约设置" @click="contractSettingsVisible = true">合约</el-button>
+      <el-button title="自选设置" @click="contractSettingsVisible = true">自选</el-button>
     </div>
     <SettingsDialog v-model="settingsVisible" />
     <ContractSettingsDialog v-model="contractSettingsVisible" />
diff --git a/src/components/header/ContractSettingsDialog.vue b/src/components/header/ContractSettingsDialog.vue
index 2972a32..6823b6a 100644
--- a/src/components/header/ContractSettingsDialog.vue
+++ b/src/components/header/ContractSettingsDialog.vue
@@ -2,7 +2,7 @@
   <el-dialog
     :model-value="modelValue"
     title="合约设置"
-    width="760px"
+    width="860px"
     destroy-on-close
     @update:model-value="emit('update:modelValue', $event)"
   >
@@ -25,6 +25,11 @@
       <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 label="大单提醒" width="88">
+        <template #default="{ row }">
+          {{ row.largeOrderAlertLots > 0 ? row.largeOrderAlertLots : '关' }}
+        </template>
+      </el-table-column>
       <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 }">
@@ -74,6 +79,16 @@
             controls-position="right"
           />
         </el-form-item>
+        <el-form-item label="大单提醒手数">
+          <el-input-number
+            v-model="form.largeOrderAlertLots"
+            :min="0"
+            :max="999999"
+            :step="10"
+            controls-position="right"
+          />
+          <div class="form-tip">现手大于该值时弹窗提醒；填 0 关闭</div>
+        </el-form-item>
         <el-form-item label="合约关键字">
           <el-input
             v-model="form.keywords"
@@ -119,6 +134,7 @@ const form = reactive({
   variety: '',
   exchange: '',
   largeOrderLots: DEFAULT_CONTRACT.largeOrderLots,
+  largeOrderAlertLots: DEFAULT_CONTRACT.largeOrderAlertLots,
   keywords: '',
 })
 
@@ -128,6 +144,8 @@ function resetForm(seed?: Partial<ContractItem>) {
   form.variety = seed?.variety || ''
   form.exchange = seed?.exchange || ''
   form.largeOrderLots = seed?.largeOrderLots || DEFAULT_CONTRACT.largeOrderLots
+  form.largeOrderAlertLots =
+    seed?.largeOrderAlertLots ?? DEFAULT_CONTRACT.largeOrderAlertLots
   form.keywords = seed?.keywords || ''
 }
 
@@ -136,6 +154,7 @@ function startAdd() {
   resetForm({
     exchange: DEFAULT_CONTRACT.exchange,
     largeOrderLots: DEFAULT_CONTRACT.largeOrderLots,
+    largeOrderAlertLots: DEFAULT_CONTRACT.largeOrderAlertLots,
   })
   formVisible.value = true
 }
@@ -188,6 +207,7 @@ function saveForm() {
     variety: form.variety.trim(),
     exchange: form.exchange.trim(),
     largeOrderLots: form.largeOrderLots,
+    largeOrderAlertLots: form.largeOrderAlertLots,
     keywords: form.keywords.trim(),
   }
   if (!payload.code) {
@@ -233,4 +253,10 @@ function saveForm() {
 .toolbar {
   margin-bottom: 12px;
 }
+
+.form-tip {
+  margin-top: 4px;
+  font-size: 12px;
+  color: var(--el-text-color-secondary);
+}
 </style>
diff --git a/src/stores/contract.ts b/src/stores/contract.ts
index 6087bd5..d2938fe 100644
--- a/src/stores/contract.ts
+++ b/src/stores/contract.ts
@@ -12,6 +12,7 @@ export const DEFAULT_CONTRACT: Omit<ContractItem, 'id'> = {
   name: '玻璃2609',
   exchange: '郑商所',
   largeOrderLots: 100,
+  largeOrderAlertLots: 0,
   keywords: '',
 }
 
@@ -28,6 +29,9 @@ function normalizeItem(raw: Partial<ContractItem> & { code?: string }): Contract
   const lots = Number(raw.largeOrderLots)
   const largeOrderLots =
     Number.isFinite(lots) && lots > 0 ? Math.floor(lots) : DEFAULT_CONTRACT.largeOrderLots
+  const alertLots = Number(raw.largeOrderAlertLots)
+  const largeOrderAlertLots =
+    Number.isFinite(alertLots) && alertLots > 0 ? Math.floor(alertLots) : 0
   const keywords = String(raw.keywords ?? '').trim()
   return {
     id: String(raw.id || createId()),
@@ -36,6 +40,7 @@ function normalizeItem(raw: Partial<ContractItem> & { code?: string }): Contract
     name,
     exchange,
     largeOrderLots,
+    largeOrderAlertLots,
     keywords,
   }
 }
diff --git a/src/stores/quota.ts b/src/stores/quota.ts
index 39319af..7919d5f 100644
--- a/src/stores/quota.ts
+++ b/src/stores/quota.ts
@@ -23,6 +23,7 @@ import {
   getPreviousTradingDate,
   isWsTradingSession,
 } from '../utils/tradingDate'
+import { notifyLargeOrders } from '../utils/largeOrderAlert'
 import type { WsConnectionStatus } from '../api/baidu/ws'
 
 /** K 线周期（日/周/月） */
@@ -139,7 +140,8 @@ export const useQuotaStore = defineStore('quota', () => {
     const product = msg.data.product
     // Mutate in place — replacing quote.value forces every chart/UI to rebuild.
     if (product === 'tick') {
-      applyWsTick(quote.value, msg.data as BaiduWsTickData)
+      const added = applyWsTick(quote.value, msg.data as BaiduWsTickData)
+      notifyLargeOrders(added, activeContract())
     } else if (product === 'snapshot') {
       applyWsSnapshot(quote.value, msg.data as BaiduWsSnapshotData)
     }
diff --git a/src/types/index.ts b/src/types/index.ts
index a6b3773..0da4559 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -161,6 +161,10 @@ export interface ContractItem {
    * 用于分时成交「大单分析」饼图。
    */
   largeOrderLots: number
+  /**
+   * 大单提醒手数：WS 实时成交现手大于该值时弹出提醒；0 表示关闭。
+   */
+  largeOrderAlertLots: 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。
diff --git a/src/utils/largeOrderAlert.ts b/src/utils/largeOrderAlert.ts
new file mode 100644
index 0000000..4887e9a
--- /dev/null
+++ b/src/utils/largeOrderAlert.ts
@@ -0,0 +1,23 @@
+import { ElNotification } from 'element-plus'
+import type { ContractItem, TradeTick } from '../types'
+
+/**
+ * 对 WS 新成交中超过「大单提醒」阈值的笔弹出 Notification。
+ * largeOrderAlertLots 为 0 时关闭提醒。
+ */
+export function notifyLargeOrders(trades: TradeTick[], contract: ContractItem): void {
+  const threshold = contract.largeOrderAlertLots
+  if (!threshold || threshold <= 0 || trades.length === 0) return
+
+  for (const t of trades) {
+    if (t.volume <= threshold) continue
+    const sideLabel = t.side === 'B' ? '买' : '卖'
+    ElNotification({
+      title: `大单提醒 · ${contract.name || contract.code}`,
+      message: `${t.time}  ${sideLabel} ${t.volume}手 @ ${t.price.toFixed(2)}`,
+      type: t.side === 'B' ? 'error' : 'success',
+      duration: 4500,
+      position: 'top-right',
+    })
+  }
+}