diff --git a/common/changes/@visactor/vtable/3645-bug-tree-node-move-position-error_2025-04-08-02-45.json b/common/changes/@visactor/vtable/3645-bug-tree-node-move-position-error_2025-04-08-02-45.json
new file mode 100644
index 0000000000..be432b69f1
--- /dev/null
+++ b/common/changes/@visactor/vtable/3645-bug-tree-node-move-position-error_2025-04-08-02-45.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "comment": "fix: when move tree node position code occor error #3645 #3706\n\n",
+      "type": "none",
+      "packageName": "@visactor/vtable"
+    }
+  ],
+  "packageName": "@visactor/vtable",
+  "email": "892739385@qq.com"
+}
\ No newline at end of file
diff --git a/packages/vtable/src/state/checkbox/checkbox.ts b/packages/vtable/src/state/checkbox/checkbox.ts
index 5e5878da2a..2b70d5a694 100644
--- a/packages/vtable/src/state/checkbox/checkbox.ts
+++ b/packages/vtable/src/state/checkbox/checkbox.ts
@@ -36,7 +36,7 @@ function setSingleCheckedState(
   const recordIndex = state.table.getRecordShowIndexByCell(col, row);
   if (recordIndex >= 0) {
     const dataIndex = state.table.dataSource.getIndexKey(recordIndex).toString();
-    if (state.checkedState.has(dataIndex)) {
+    if (state.checkedState.get(dataIndex)) {
       state.checkedState.get(dataIndex)[field] = checked;
     } else {
       state.checkedState.set(dataIndex, {
@@ -89,7 +89,7 @@ export function syncCheckedState(
     if (isValid(state.checkedState.get(dataIndex)?.[field])) {
       return state.checkedState.get(dataIndex)[field];
     }
-    if (state.checkedState.has(dataIndex)) {
+    if (state.checkedState.get(dataIndex)) {
       state.checkedState.get(dataIndex)[field] = checked;
     } else if (dataIndex.includes(',')) {
       // child record, sync parent record state