diff --git a/core/core-frontend/src/views/chart/components/js/panel/common/common_table.ts b/core/core-frontend/src/views/chart/components/js/panel/common/common_table.ts
index d1d7985f77..a86c21239e 100644
--- a/core/core-frontend/src/views/chart/components/js/panel/common/common_table.ts
+++ b/core/core-frontend/src/views/chart/components/js/panel/common/common_table.ts
@@ -1464,6 +1464,16 @@ export function configMergeCells(chart: Chart, options: S2Options) {
         }
       })
     })
+    if (showIndex) {
+      const indexMergedCells = mergedCellsInfo.filter(cells => cells[0].colIndex === 1)
+      indexMergedCells.forEach(cells => {
+        const tmpCells = cloneDeep(cells)
+        tmpCells.forEach(cell => {
+          cell.colIndex = 0
+        })
+        mergedCellsInfo.unshift(tmpCells)
+      })
+    }
     options.mergedCellsInfo = mergedCellsInfo
     options.mergedCell = (sheet, cells, meta) => {
       return new CustomMergedCell(sheet, cells, meta)
@@ -1486,4 +1496,4 @@ class CustomMergedCell extends MergedCell {
       lineHeight: cellTheme.horizontalBorderWidth,
     })
   }
-}
\ No newline at end of file
+}