diff --git a/client/src/components/TaskManager.tsx b/client/src/components/TaskManager.tsx
index 130f03d..d74ea08 100644
--- a/client/src/components/TaskManager.tsx
+++ b/client/src/components/TaskManager.tsx
@@ -240,6 +240,19 @@ export default function TaskManager({
   const activeInspectionObject = inspectionObjects.find(
     object => object.id === activeTask?.inspectionObjectId
   );
+
+  // 打开新建任务表单时默认选择首个可用检测对象；若列表异步刷新，
+  // 则仅在当前选择失效时回退到第一项，避免覆盖用户的手动选择。
+  useEffect(() => {
+    if (!adding) return;
+    setNewTaskInspectionObjectId(currentId => {
+      if (inspectionObjects.some(object => object.id === currentId)) {
+        return currentId;
+      }
+      return inspectionObjects[0]?.id ?? null;
+    });
+  }, [adding, inspectionObjects]);
+
   const createTask = trpc.inspectionTask.create.useMutation({
     onSuccess: result => {
       pendingDefaultSelection.current = {
@@ -692,6 +705,7 @@ export default function TaskManager({
             <button
               className="industrial-btn flex shrink-0 items-center gap-0.5 whitespace-nowrap px-2 py-0.5 text-[10px]"
               onClick={() => {
+                setNewTaskInspectionObjectId(inspectionObjects[0]?.id ?? null);
                 setAdding(true);
                 onStartCreate?.();
               }}