diff --git a/src/components/position/PositionPanel.vue b/src/components/position/PositionPanel.vue
index 576f27b..74ce327 100644
--- a/src/components/position/PositionPanel.vue
+++ b/src/components/position/PositionPanel.vue
@@ -9,17 +9,23 @@
       <span v-if="data.updatedAt" class="updated">数据日期 {{ data.updatedAt }}</span>
     </div>
 
-    <!-- 总持仓：多 / 空 -->
-    <div v-if="tab === 'total'" class="cols">
-      <div class="col">
-        <h3 class="long-title">多单持仓前20名</h3>
-        <PositionDonut :list="data.long" />
-        <PositionTable :list="data.long" qty-label="多单" />
-      </div>
-      <div class="col">
-        <h3 class="short-title">空单持仓前20名</h3>
-        <PositionDonut :list="data.short" />
-        <PositionTable :list="data.short" qty-label="空单" />
+    <!-- 总持仓：多空汇总柱状图 + 多 / 空前20 -->
+    <div v-if="tab === 'total'">
+      <PositionSumBar
+        v-if="data.topTwentySum?.length"
+        :list="data.topTwentySum"
+      />
+      <div class="cols">
+        <div class="col">
+          <h3 class="long-title">多单持仓前20名</h3>
+          <PositionDonut :list="data.long" />
+          <PositionTable :list="data.long" qty-label="多单" />
+        </div>
+        <div class="col">
+          <h3 class="short-title">空单持仓前20名</h3>
+          <PositionDonut :list="data.short" />
+          <PositionTable :list="data.short" qty-label="空单" />
+        </div>
       </div>
     </div>
 
@@ -53,6 +59,7 @@ import { ref } from 'vue'
 import type { PositionsData } from '../../types'
 import PositionDonut from './PositionDonut.vue'
 import PositionTable from './PositionTable.vue'
+import PositionSumBar from './PositionSumBar.vue'
 
 defineProps<{
   data: PositionsData
diff --git a/src/components/position/PositionSumBar.vue b/src/components/position/PositionSumBar.vue
new file mode 100644
index 0000000..d6d954e
--- /dev/null
+++ b/src/components/position/PositionSumBar.vue
@@ -0,0 +1,103 @@
+<template>
+  <div class="sum-bar">
+    <h3 class="title">前20多空总持仓</h3>
+    <v-chart class="chart" :option="option" autoresize />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { use } from 'echarts/core'
+import { CanvasRenderer } from 'echarts/renderers'
+import { BarChart } from 'echarts/charts'
+import {
+  GridComponent,
+  TooltipComponent,
+  LegendComponent,
+} from 'echarts/components'
+import type { EChartsOption } from 'echarts'
+import VChart from 'vue-echarts'
+import type { TopTwentySum } from '../../types'
+
+use([CanvasRenderer, BarChart, GridComponent, TooltipComponent, LegendComponent])
+
+const props = defineProps<{
+  list: TopTwentySum[]
+}>()
+
+const option = computed((): EChartsOption => {
+  // 接口通常新→旧，图表按时间从左到右
+  const sorted = [...props.list].sort((a, b) =>
+    a.tradeDate.localeCompare(b.tradeDate),
+  )
+  const dates = sorted.map((x) => x.tradeDate)
+  const longData = sorted.map((x) => x.longSum)
+  const shortData = sorted.map((x) => x.shortSum)
+
+  return {
+    color: ['#e54545', '#0ea5a0'],
+    tooltip: {
+      trigger: 'axis',
+      axisPointer: { type: 'shadow' },
+      valueFormatter: (v) =>
+        typeof v === 'number' ? v.toLocaleString('zh-CN') : String(v ?? ''),
+    },
+    legend: {
+      data: ['多总持仓', '空总持仓'],
+      top: 0,
+      right: 8,
+      textStyle: { fontSize: 12 },
+    },
+    grid: { left: 56, right: 16, top: 36, bottom: 28 },
+    xAxis: {
+      type: 'category',
+      data: dates,
+      axisLabel: { fontSize: 11 },
+      axisTick: { alignWithLabel: true },
+    },
+    yAxis: {
+      type: 'value',
+      scale: true,
+      axisLabel: {
+        fontSize: 10,
+        formatter: (v: number) =>
+          v >= 10000 ? `${(v / 10000).toFixed(0)}万` : String(v),
+      },
+      splitLine: { lineStyle: { type: 'dashed', color: '#eee' } },
+    },
+    series: [
+      {
+        name: '多总持仓',
+        type: 'bar',
+        data: longData,
+        barMaxWidth: 36,
+        itemStyle: { color: '#e54545', borderRadius: [2, 2, 0, 0] },
+      },
+      {
+        name: '空总持仓',
+        type: 'bar',
+        data: shortData,
+        barMaxWidth: 36,
+        itemStyle: { color: '#0ea5a0', borderRadius: [2, 2, 0, 0] },
+      },
+    ],
+  }
+})
+</script>
+
+<style scoped>
+.sum-bar {
+  margin-bottom: 16px;
+}
+
+.title {
+  margin: 0 0 4px;
+  font-size: 14px;
+  color: var(--text-primary, #303133);
+}
+
+.chart {
+  height: 240px;
+  width: 100%;
+}
+</style>
diff --git a/src/mocks/positions.ts b/src/mocks/positions.ts
index 5188ccd..311abec 100644
--- a/src/mocks/positions.ts
+++ b/src/mocks/positions.ts
@@ -83,6 +83,7 @@ export const positionsMock: PositionsData = {
   topTwentySum: [
     { tradeDate: '2026-07-15', longSum: 1073446, shortSum: 1502020 },
     { tradeDate: '2026-07-14', longSum: 1094199, shortSum: 1519906 },
+    { tradeDate: '2026-07-13', longSum: 1095204, shortSum: 1537419 },
   ],
   updatedAt: '2026-07-15',
 }