diff --git a/common/changes/@visactor/vtable/fix-custom-merge-update_2024-07-29-13-26.json b/common/changes/@visactor/vtable/fix-custom-merge-update_2024-07-29-13-26.json
new file mode 100644
index 000000000..f3ae6ee33
--- /dev/null
+++ b/common/changes/@visactor/vtable/fix-custom-merge-update_2024-07-29-13-26.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@visactor/vtable",
+      "comment": "fix: fix customMege cell update",
+      "type": "none"
+    }
+  ],
+  "packageName": "@visactor/vtable"
+}
\ No newline at end of file
diff --git a/packages/vtable/src/scenegraph/layout/update-height.ts b/packages/vtable/src/scenegraph/layout/update-height.ts
index 1f48e6405..ef178c84a 100644
--- a/packages/vtable/src/scenegraph/layout/update-height.ts
+++ b/packages/vtable/src/scenegraph/layout/update-height.ts
@@ -206,8 +206,8 @@ export function updateCellHeight(
           }
           const mergedCell = scene.getCell(col, mergeRow);
           const customContainer =
-            (cell.getChildByName(CUSTOM_CONTAINER_NAME) as Group) ||
-            (cell.getChildByName(CUSTOM_MERGE_CONTAINER_NAME) as Group);
+            (mergedCell.getChildByName(CUSTOM_CONTAINER_NAME) as Group) ||
+            (mergedCell.getChildByName(CUSTOM_MERGE_CONTAINER_NAME) as Group);
           customContainer.removeAllChild();
           mergedCell.removeChild(customContainer);
           getCustomCellMergeCustom(col, mergeRow, mergedCell, scene.table);
diff --git a/packages/vtable/src/scenegraph/layout/update-width.ts b/packages/vtable/src/scenegraph/layout/update-width.ts
index 15f4f189c..a885a6840 100644
--- a/packages/vtable/src/scenegraph/layout/update-width.ts
+++ b/packages/vtable/src/scenegraph/layout/update-width.ts
@@ -366,7 +366,7 @@ function updateCellWidth(
           const mergedCell = scene.getCell(mergeCol, row);
           const customContainer =
             (mergedCell.getChildByName(CUSTOM_CONTAINER_NAME) as Group) ||
-            (cell.getChildByName(CUSTOM_MERGE_CONTAINER_NAME) as Group);
+            (mergedCell.getChildByName(CUSTOM_MERGE_CONTAINER_NAME) as Group);
           customContainer.removeAllChild();
           mergedCell.removeChild(customContainer);
           getCustomCellMergeCustom(mergeCol, row, mergedCell, scene.table);