diff --git a/packages/core/client/src/schema-component/antd/association-field/SubTable.tsx b/packages/core/client/src/schema-component/antd/association-field/SubTable.tsx
index 5fef2a409b..e40711b325 100644
--- a/packages/core/client/src/schema-component/antd/association-field/SubTable.tsx
+++ b/packages/core/client/src/schema-component/antd/association-field/SubTable.tsx
@@ -75,7 +75,7 @@ export const SubTable: any = observer(
             .ant-table table {
             }
             td:not(.ant-table-selection-column) {
-              padding: 0 !important;
+              padding: 5 !important;
             }
           `}
           bordered
diff --git a/packages/core/client/src/schema-component/antd/table-v2/Table.Column.Designer.tsx b/packages/core/client/src/schema-component/antd/table-v2/Table.Column.Designer.tsx
index 93a7f44281..cabec3b220 100644
--- a/packages/core/client/src/schema-component/antd/table-v2/Table.Column.Designer.tsx
+++ b/packages/core/client/src/schema-component/antd/table-v2/Table.Column.Designer.tsx
@@ -282,7 +282,7 @@ export const TableColumnDesigner = (props) => {
         )}
       <SchemaSettings.Divider />
       <SchemaSettings.Remove
-        removeParentsIfNoChildren
+        removeParentsIfNoChildren={!isSubTableColumn}
         breakRemoveOn={{
           'x-component': 'Grid',
         }}