diff --git a/_t.mjs b/_t.mjs
new file mode 100644
index 0000000..b71e42d
--- /dev/null
+++ b/_t.mjs
@@ -0,0 +1,66 @@
+import { writeFileSync } from 'fs'
+
+const L = {
+  intraday: '\u5206\u65f6',
+  day: '\u65e5K',
+  week: '\u5468K',
+  month: '\u6708K',
+  avg: '\u5747\u4ef7',
+  volume: '\u6210\u4ea4\u91cf',
+}
+
+const content = `<template>
+  <div class="chart-panel card" v-loading="klineLoading">
+    <el-tabs v-model="period" class="tabs" @tab-change="onTabChange">
+      <el-tab-pane :label="L.intraday" name="intraday" />
+      <el-tab-pane :label="L.day" name="day" />
+      <el-tab-pane :label="L.week" name="week" />
+      <el-tab-pane :label="L.month" name="month" />
+    </el-tabs>
+    <v-chart class="chart" :option="option" autoresize />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, ref } from 'vue'
+import { use } from 'echarts/core'
+import { CanvasRenderer } from 'echarts/renderers'
+import { LineChart, BarChart, CandlestickChart } from 'echarts/charts'
+import {
+  GridComponent,
+  TooltipComponent,
+  DataZoomComponent,
+  LegendComponent,
+} from 'echarts/components'
+import type { EChartsOption } from 'echarts'
+import VChart from 'vue-echarts'
+import type { Candle, QuoteData } from '../../types'
+import type { KlinePeriod } from '../../composables/useQuote'
+
+use([
+  CanvasRenderer,
+  LineChart,
+  BarChart,
+  CandlestickChart,
+  GridComponent,
+  TooltipComponent,
+  DataZoomComponent,
+  LegendComponent,
+])
+
+/** Tab / series labels — keep as JS unicode to avoid file encoding corruption */
+const L = {
+  intraday: '\\u5206\\u65f6',
+  day: '\\u65e5K',
+  week: '\\u5468K',
+  month: '\\u6708K',
+  avg: '\\u5747\\u4ef7',
+  volume: '\\u6210\\u4ea4\\u91cf',
+}
+
+// Fix: the above would be literal backslash-u. Write real chars via template:
+void 0
+</script>
+`
+writeFileSync('src/components/quote/ChartPanel.vue', 'placeholder')
+console.log('skip')
diff --git a/src/App.vue b/src/App.vue
index 8535a93..1ac7bae 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -7,7 +7,12 @@
     <section class="quote-section">
       <QuoteStats v-if="quote" :quote="quote" />
       <div class="quote-grid">
-        <ChartPanel v-if="quote" :quote="quote" />
+        <ChartPanel
+          v-if="quote"
+          :quote="quote"
+          :kline-loading="klineLoading"
+          :load-kline="loadKline"
+        />
         <aside class="side">
           <OrderBook v-if="quote" :quote="quote" />
           <TradeTape v-if="quote" :quote="quote" />
@@ -50,7 +55,7 @@ import { useNews } from './composables/useNews'
 import { usePositions } from './composables/usePositions'
 import { useAiAdvice } from './composables/useAiAdvice'
 
-const { data: quote } = useQuote()
+const { data: quote, klineLoading, loadKline } = useQuote()
 const { data: news, loading: newsLoading, error: newsError, refresh: refreshNews } = useNews()
 const { data: positions } = usePositions()
 const { data: advice, loading: adviceLoading, refresh: refreshAdvice } = useAiAdvice()
diff --git a/src/api/baidu/mapKline.ts b/src/api/baidu/mapKline.ts
new file mode 100644
index 0000000..9113a9e
--- /dev/null
+++ b/src/api/baidu/mapKline.ts
@@ -0,0 +1,42 @@
+import type { Candle } from '../../types'
+import type { BaiduKlineResult } from './types'
+
+function toNum(value: string | undefined, fallback = 0): number {
+  if (value == null || value === '' || value === '--') return fallback
+  const cleaned = value.replace(/[+,%]/g, '').trim()
+  const n = Number(cleaned)
+  return Number.isFinite(n) ? n : fallback
+}
+
+/**
+ * 解析 K 线 marketData 字符串。
+ * 字段顺序（keys）：timestamp, time, open, close, volume, high, low, ...
+ * K 线之间用 `;` 分隔，字段用 `,` 分隔。
+ */
+export function parseKlineMarketData(marketData: string): Candle[] {
+  if (!marketData) return []
+
+  const candles: Candle[] = []
+  const rows = marketData.split(';').filter(Boolean)
+
+  for (const row of rows) {
+    const parts = row.split(',')
+    // timestamp, time, open, close, volume, high, low
+    if (parts.length < 7) continue
+
+    candles.push({
+      date: parts[1] ?? '',
+      open: toNum(parts[2]),
+      close: toNum(parts[3]),
+      volume: toNum(parts[4]),
+      high: toNum(parts[5]),
+      low: toNum(parts[6]),
+    })
+  }
+
+  return candles
+}
+
+export function mapBaiduKlineToCandles(result: BaiduKlineResult): Candle[] {
+  return parseKlineMarketData(result.newMarketData?.marketData ?? '')
+}
diff --git a/src/api/baidu/mapQuote.ts b/src/api/baidu/mapQuote.ts
index 0c76384..ff33057 100644
--- a/src/api/baidu/mapQuote.ts
+++ b/src/api/baidu/mapQuote.ts
@@ -59,10 +59,7 @@ function parseTrades(result: BaiduQuotationResult): TradeTick[] {
   }))
 }
 
-export function mapBaiduQuotationToQuote(
-  result: BaiduQuotationResult,
-  fallback?: QuoteData,
-): QuoteData {
+export function mapBaiduQuotationToQuote(result: BaiduQuotationResult): QuoteData {
   const op = result.pankouinfos?.origin_pankou
   const cur = result.cur
   const basic = result.basicinfos
@@ -120,7 +117,8 @@ export function mapBaiduQuotationToQuote(
     buyRatio,
     sellRatio,
     intraday: parseIntraday(result),
-    candles: fallback?.candles ?? { day: [], week: [], month: [] },
+    // K 线按需加载，映射分时时不带入 mock/旧缓存
+    candles: { day: [], week: [], month: [] },
     orderBook: { asks, bids },
     trades: parseTrades(result),
   }
diff --git a/src/api/baidu/quotation.ts b/src/api/baidu/quotation.ts
index 5f47b45..31b8e6c 100644
--- a/src/api/baidu/quotation.ts
+++ b/src/api/baidu/quotation.ts
@@ -1,10 +1,22 @@
 import { baiduHttp } from '../http'
-import type { BaiduQuotationResponse, BaiduQuotationResult } from './types'
+import type {
+  BaiduKlineResponse,
+  BaiduKlineResult,
+  BaiduKlineType,
+  BaiduQuotationResponse,
+  BaiduQuotationResult,
+} from './types'
 
 export interface GetStockQuotationParams {
   code: string
 }
 
+export interface GetStockKlineParams {
+  code: string
+  /** 1=日K，2=周K，3=月K */
+  ktype: BaiduKlineType
+}
+
 /**
  * 百度财经 — 期货盘口 / 分时 / 行情快照
  * 仅页面打开时拉取一次；实时更新后续对接 WebSocket。
@@ -52,3 +64,42 @@ export async function getStockQuotation(
 
   return result
 }
+
+/**
+ * 百度财经 — 期货 K 线（日/周/月）
+ * marketData 为 `;` 分隔的 K 线，每根内字段用 `,` 分隔。
+ */
+export async function getStockKline(
+  params: GetStockKlineParams,
+): Promise<BaiduKlineResult> {
+  const { data } = await baiduHttp.get<BaiduKlineResponse>(
+    '/selfselect/getstockquotation',
+    {
+      params: {
+        all: 1,
+        code: params.code,
+        isIndex: false,
+        isBk: false,
+        isBlock: false,
+        isFutures: true,
+        isStock: false,
+        newFormat: 1,
+        ktype: params.ktype,
+        market_type: 'ab',
+        group: 'quotation_futures_kline',
+        finClientType: 'pc',
+      },
+    },
+  )
+
+  if (data.ResultCode !== '0') {
+    throw new Error(`K线接口失败: ResultCode=${data.ResultCode}`)
+  }
+
+  const result = data.Result
+  if (!result?.newMarketData?.marketData) {
+    throw new Error('K线接口返回空 marketData')
+  }
+
+  return result
+}
diff --git a/src/api/baidu/types.ts b/src/api/baidu/types.ts
index 252a55b..4f4d795 100644
--- a/src/api/baidu/types.ts
+++ b/src/api/baidu/types.ts
@@ -102,6 +102,26 @@ export interface BaiduQuotationResponse {
   Result: BaiduQuotationResult | BaiduQuotationResult[]
 }
 
+/** K 线周期：1=日K，2=周K，3=月K */
+export type BaiduKlineType = 1 | 2 | 3
+
+/** 百度财经 — 期货 K 线 newMarketData（marketData 为 ; 分隔的 CSV 串） */
+export interface BaiduKlineNewMarketData {
+  headers: string[]
+  keys: string[]
+  marketData: string
+}
+
+export interface BaiduKlineResult {
+  newMarketData: BaiduKlineNewMarketData
+}
+
+export interface BaiduKlineResponse {
+  QueryID: string
+  ResultCode: string
+  Result: BaiduKlineResult
+}
+
 /** 百度财经 — 期货相关新闻单条 */
 export interface BaiduFuturesNewsItem {
   loc: string
diff --git a/src/components/quote/ChartPanel.vue b/src/components/quote/ChartPanel.vue
index 81c0016..3d7a7b9 100644
--- a/src/components/quote/ChartPanel.vue
+++ b/src/components/quote/ChartPanel.vue
@@ -1,11 +1,10 @@
 <template>
-  <div class="chart-panel card">
-    <el-tabs v-model="period" class="tabs">
-      <el-tab-pane label="分时" name="intraday" />
-      <el-tab-pane label="五日" name="five" />
-      <el-tab-pane label="日K" name="day" />
-      <el-tab-pane label="周K" name="week" />
-      <el-tab-pane label="月K" name="month" />
+  <div class="chart-panel card" v-loading="klineLoading">
+    <el-tabs v-model="period" class="tabs" @tab-change="onTabChange">
+      <el-tab-pane :label="TAB.intraday" name="intraday" />
+      <el-tab-pane :label="TAB.day" name="day" />
+      <el-tab-pane :label="TAB.week" name="week" />
+      <el-tab-pane :label="TAB.month" name="month" />
     </el-tabs>
     <v-chart class="chart" :option="option" autoresize />
   </div>
@@ -25,6 +24,7 @@ import {
 import type { EChartsOption } from 'echarts'
 import VChart from 'vue-echarts'
 import type { Candle, QuoteData } from '../../types'
+import type { KlinePeriod } from '../../composables/useQuote'
 
 use([
   CanvasRenderer,
@@ -37,7 +37,17 @@ use([
   LegendComponent,
 ])
 
-type ChartPeriod = 'intraday' | 'five' | 'day' | 'week' | 'month'
+/** ASCII-safe unicode escapes ? avoids Windows encoding corruption */
+const TAB = {
+  intraday: '\u5206\u65f6',
+  day: '\u65e5K',
+  week: '\u5468K',
+  month: '\u6708K',
+  avg: '\u5747\u4ef7',
+  volume: '\u6210\u4ea4\u91cf',
+}
+
+type ChartPeriod = 'intraday' | KlinePeriod
 
 interface ColorParam {
   dataIndex?: number
@@ -45,22 +55,27 @@ interface ColorParam {
 
 const props = defineProps<{
   quote: QuoteData
+  klineLoading?: boolean
+  loadKline: (period: KlinePeriod) => Promise<Candle[]>
 }>()
 
 const period = ref<ChartPeriod>('intraday')
 
-const option = computed((): EChartsOption => {
-  if (period.value === 'intraday' || period.value === 'five') {
-    return buildIntradayOption(props.quote, period.value === 'five')
+async function onTabChange(name: string | number) {
+  if (name === 'day' || name === 'week' || name === 'month') {
+    await props.loadKline(name)
   }
-  const key = period.value === 'day' ? 'day' : period.value === 'week' ? 'week' : 'month'
-  return buildCandleOption(props.quote.candles[key])
+}
+
+const option = computed((): EChartsOption => {
+  if (period.value === 'intraday') {
+    return buildIntradayOption(props.quote)
+  }
+  return buildCandleOption(props.quote.candles[period.value])
 })
 
-function buildIntradayOption(quote: QuoteData, fiveDay: boolean): EChartsOption {
-  const points = fiveDay
-    ? [...quote.intraday, ...quote.intraday.map((p) => ({ ...p, price: p.price + 1.5 }))]
-    : quote.intraday
+function buildIntradayOption(quote: QuoteData): EChartsOption {
+  const points = quote.intraday
   const times = points.map((p) => p.time)
   const prices = points.map((p) => p.price)
   const avgs = points.map((p) => p.avg)
@@ -69,7 +84,7 @@ function buildIntradayOption(quote: QuoteData, fiveDay: boolean): EChartsOption
 
   return {
     animation: false,
-    legend: { data: ['分时', '均价'], top: 0, textStyle: { fontSize: 11 } },
+    legend: { data: [TAB.intraday, TAB.avg], top: 0, textStyle: { fontSize: 11 } },
     tooltip: { trigger: 'axis' },
     axisPointer: { link: [{ xAxisIndex: 'all' }] },
     grid: [
@@ -121,7 +136,7 @@ function buildIntradayOption(quote: QuoteData, fiveDay: boolean): EChartsOption
     dataZoom: [{ type: 'inside', xAxisIndex: [0, 1] }],
     series: [
       {
-        name: '分时',
+        name: TAB.intraday,
         type: 'line',
         data: prices,
         showSymbol: false,
@@ -143,7 +158,7 @@ function buildIntradayOption(quote: QuoteData, fiveDay: boolean): EChartsOption
         yAxisIndex: 0,
       },
       {
-        name: '均价',
+        name: TAB.avg,
         type: 'line',
         data: avgs,
         showSymbol: false,
@@ -152,7 +167,7 @@ function buildIntradayOption(quote: QuoteData, fiveDay: boolean): EChartsOption
         yAxisIndex: 0,
       },
       {
-        name: '成交量',
+        name: TAB.volume,
         type: 'bar',
         data: vols,
         itemStyle: {
diff --git a/src/composables/useQuote.ts b/src/composables/useQuote.ts
index d56a6fd..a2b5e83 100644
--- a/src/composables/useQuote.ts
+++ b/src/composables/useQuote.ts
@@ -1,21 +1,43 @@
 import { onMounted, ref } from 'vue'
-import type { QuoteData } from '../types'
+import type { Candle, QuoteData } from '../types'
 import { quoteMock } from '../mocks/quote'
 import { contractConfig } from '../config/contract'
-import { getStockQuotation } from '../api/baidu/quotation'
+import { getStockKline, getStockQuotation } from '../api/baidu/quotation'
 import { mapBaiduQuotationToQuote } from '../api/baidu/mapQuote'
+import { mapBaiduKlineToCandles } from '../api/baidu/mapKline'
+import type { BaiduKlineType } from '../api/baidu/types'
+
+export type KlinePeriod = 'day' | 'week' | 'month'
+
+const KTYPE_MAP: Record<KlinePeriod, BaiduKlineType> = {
+  day: 1,
+  week: 2,
+  month: 3,
+}
 
 export function useQuote() {
   const data = ref<QuoteData>(structuredClone(quoteMock))
   const loading = ref(false)
+  const klineLoading = ref(false)
   const error = ref<unknown>(null)
 
+  /** 已加载过的周期，避免重复请求 */
+  const loadedKlines = ref<Record<KlinePeriod, boolean>>({
+    day: false,
+    week: false,
+    month: false,
+  })
+
   async function refresh() {
     loading.value = true
     error.value = null
     try {
       const result = await getStockQuotation({ code: contractConfig.code })
-      data.value = mapBaiduQuotationToQuote(result, data.value)
+      const quote = mapBaiduQuotationToQuote(result)
+      // 分时刷新时清空 K 线缓存，点击 Tab 再拉
+      quote.candles = { day: [], week: [], month: [] }
+      loadedKlines.value = { day: false, week: false, month: false }
+      data.value = quote
     } catch (e) {
       error.value = e
       console.error('[useQuote] 拉取行情失败', e)
@@ -24,10 +46,36 @@ export function useQuote() {
     }
   }
 
-  // 页面打开时请求一次；实时数据后续对接 WebSocket
+  /** 按需加载日/周/月 K 线；已加载则跳过 */
+  async function loadKline(period: KlinePeriod): Promise<Candle[]> {
+    if (loadedKlines.value[period]) {
+      return data.value.candles[period]
+    }
+
+    klineLoading.value = true
+    error.value = null
+    try {
+      const result = await getStockKline({
+        code: contractConfig.code,
+        ktype: KTYPE_MAP[period],
+      })
+      const candles = mapBaiduKlineToCandles(result)
+      data.value.candles[period] = candles
+      loadedKlines.value[period] = true
+      return candles
+    } catch (e) {
+      error.value = e
+      console.error(`[useQuote] 拉取${period}K线失败`, e)
+      throw e
+    } finally {
+      klineLoading.value = false
+    }
+  }
+
+  // 页面打开时只请求分时/盘口；K 线点击 Tab 再拉
   onMounted(() => {
     void refresh()
   })
 
-  return { data, loading, error, refresh }
+  return { data, loading, klineLoading, error, refresh, loadKline }
 }