diff --git a/src/factory.tsx b/src/factory.tsx
index 2f5818faf..fef67a2fe 100644
--- a/src/factory.tsx
+++ b/src/factory.tsx
@@ -728,19 +728,20 @@ export function HocStoreFactory(renderer: {
             );
         } else if (isObjectShallowModified(props.data, nextProps.data)) {
           if (nextProps.store && nextProps.store.data === nextProps.data) {
-            const newData = createObject(
+            const diff = syncDataFromSuper(
+              store.data,
               nextProps.store.data,
-              syncDataFromSuper(
-                store.data,
-                nextProps.store.data,
-                props.scope,
-                nextProps.dataUpdatedAt !== props.dataUpdatedAt,
-                store
-              )
+              props.scope,
+              nextProps.dataUpdatedAt !== props.dataUpdatedAt,
+              store
             );
 
-            // todo fix: dialog 种数据从孩子 form 同步过来后，会走这个逻辑让 form 更新 data，会导致里面的 __prev 丢失。
-            store.initData(newData);
+            if (Object.keys(diff).length) {
+              const newData = createObject(nextProps.store.data, diff);
+
+              // todo fix: dialog 种数据从孩子 form 同步过来后，会走这个逻辑让 form 更新 data，会导致里面的 __prev 丢失。
+              store.initData(newData);
+            }
           } else if (nextProps.data && (nextProps.data as any).__super) {
             store.initData(extendObject(nextProps.data));
           } else {