diff --git a/index.html b/index.html
index ee70fb9..1f86d01 100755
--- a/index.html
+++ b/index.html
@@ -150,7 +150,7 @@
       <article class="chart-card">
         <h2>LinkName Commission 趋势</h2>
         <p id="link-commission-description">按日期和 LinkName 堆积显示 Commission</p>
-        <div class="chart" id="link-commission-chart" role="img" aria-label="按日期和 LinkName 堆积的 Commission 折线图"></div>
+        <div class="chart" id="link-commission-chart" role="img" aria-label="按日期和 LinkName 堆积的 Commission 柱状图"></div>
       </article>
       <article class="chart-card">
         <h2>LinkName GMV 趋势</h2>
@@ -479,7 +479,7 @@
             var value = linkDates.get(item.date.key);
             return value || { commission: 0, gmv: 0 };
           });
-          linkCommissionSeries.push({ name: linkName + ' · Commission', type: 'line', stack: 'commission-by-link', smooth: true, symbol: 'circle', symbolSize: 5, data: values.map(function (value) { return value.commission; }) });
+          linkCommissionSeries.push({ name: linkName + ' · Commission', type: 'bar', stack: 'commission-by-link', smooth: true, symbol: 'circle', symbolSize: 5, data: values.map(function (value) { return value.commission; }) });
           linkGmvSeries.push({ name: linkName + ' · GMV', type: 'bar', stack: 'gmv-by-link', barMaxWidth: 34, data: values.map(function (value) { return value.gmv; }) });
         });
         var commissionChart = Object.assign({}, common, {
@@ -498,7 +498,7 @@
         charts[1].setOption(commissionChart);
         charts[2].setOption(gmvChart);
         elements.overviewDescription.textContent = '按日期汇总 · Commission 柱状图使用主轴 · GMV 折线图使用副轴 · ' + state.selectedCurrency;
-        elements.linkCommissionDescription.textContent = '按日期和 LinkName 堆积 · Commission 折线图 · 主轴 ' + commissionAxisName;
+        elements.linkCommissionDescription.textContent = '按日期和 LinkName 堆积 · Commission 柱状图 · 主轴 ' + commissionAxisName;
         elements.linkGmvDescription.textContent = '按日期和 LinkName 堆积 · GMV 柱状图 · 主轴 ' + gmvAxisName;
       }