diff --git a/ide/src/base-ui/utils/CSVFormater.ts b/ide/src/base-ui/utils/CSVFormater.ts
index 816351c2629324ab9908ad8475ef0a6e7852498d..349b230382c4fdea26085aeab876f49394672a0e 100644
--- a/ide/src/base-ui/utils/CSVFormater.ts
+++ b/ide/src/base-ui/utils/CSVFormater.ts
@@ -178,7 +178,7 @@ export class JSONToCSV {
       let dataIndex = column.getAttribute('data-index');
       let columnName = column.getAttribute('title');
       if (columnName == '') {
-        columnName = dataIndex;
+        columnName = dataIndex == 'busyTimeStr' ? 'GetBusyTime(ms)' : dataIndex;
       }
       if (columnName !== '  ') {
         titleList.push(columnName);
diff --git a/ide/src/trace/component/trace/sheet/cpu/TabPaneFrequencySample.ts b/ide/src/trace/component/trace/sheet/cpu/TabPaneFrequencySample.ts
index 2306d1da1ba8fef0d52ac01d98f43962e41fbfb8..44069d6cf24901715d5a242bce95fc9ca54148d2 100644
--- a/ide/src/trace/component/trace/sheet/cpu/TabPaneFrequencySample.ts
+++ b/ide/src/trace/component/trace/sheet/cpu/TabPaneFrequencySample.ts
@@ -322,7 +322,7 @@ export class TabPaneFrequencySample extends BaseElement {
             </lit-table-column>
             <lit-table-column class="freq-sample-column" width="1fr" title="Value(kHz)" data-index="valueStr" key="valueStr" align="flex-start" order>
             </lit-table-column>
-            <lit-table-column class="freq-sample-column" width="1fr" data-index="busyTimeStr" key="busyTimeStr" align="flex-start" order button>
+            <lit-table-column class="freq-sample-column" width="1fr" title="" data-index="busyTimeStr" key="busyTimeStr" align="flex-start" order button>
             </lit-table-column>
         </lit-table>
         `;