diff --git a/BUILD.gn b/BUILD.gn
index a592a60317ce80f0fc8562ee1609b73be0ef6d83..f0c8acccd7243bf90e174b5342cbd8e30b8adeab 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -358,35 +358,3 @@ if (defined(ohos_lite)) {
     ]
   }
 }
-
-ohos_ndk_library("libuv_ndk") {
-  ndk_description_file = "./libuv.ndk.json"
-  min_compact_version = "1"
-  output_name = "uv"
-  output_extension = "so"
-}
-
-ohos_ndk_headers("libuv_header") {
-  dest_dir = "$ndk_headers_out_dir"
-  sources = [ "include/uv_ndk/uv.h" ]
-}
-
-ohos_ndk_headers("libuv_uv_header") {
-  dest_dir = "$ndk_headers_out_dir/uv"
-  sources = [
-    "include/uv/aix.h",
-    "include/uv/bsd.h",
-    "include/uv/darwin.h",
-    "include/uv/errno.h",
-    "include/uv/linux.h",
-    "include/uv/os390.h",
-    "include/uv/posix.h",
-    "include/uv/stdint-msvc2008.h",
-    "include/uv/sunos.h",
-    "include/uv/threadpool.h",
-    "include/uv/tree.h",
-    "include/uv/unix.h",
-    "include/uv/version.h",
-    "include/uv/win.h",
-  ]
-}
diff --git a/src/threadpool.c b/src/threadpool.c
index c7294a68ae0fc9cc0a5f3f66e7840728b1291bcb..25b9d19c0a7717d8beff835d25a9e90a975772e6 100644
--- a/src/threadpool.c
+++ b/src/threadpool.c
@@ -38,6 +38,8 @@
 
 #define MAX_THREADPOOL_SIZE 1024
 #define TASK_NUMBER_WARNING 50
+#define UV_TRACE_NAME "UV_TRACE"
+
 static uv_rwlock_t g_closed_uv_loop_rwlock;
 
 static uv_cond_t cond;
@@ -632,7 +634,7 @@ static int uv__work_cancel(uv_loop_t* loop, uv_req_t* req, struct uv__work* w) {
   uv__loop_internal_fields_t* lfields = uv__get_internal_fields(w->loop);
   int qos = (ffrt_qos_t)(intptr_t)req->reserved[0];
 
-  if (check_data_valid((struct uv_loop_data*)(w->loop->data)) == 0) {
+  if (check_data_valid((struct uv_loop_data*)(loop->data)) == 0) {
     struct uv_parm_t parm;
     uv_work_t* work_temp = container_of(w, uv_work_t, work_req);
     parm.work = req;
@@ -677,9 +679,15 @@ void uv__work_done(uv_async_t* handle) {
       QUEUE_APPEND(&lfields->wq_sub[i], &wq);
     }
   }
+
+  if (loop->active_reqs.count > TASK_NUMBER_WARNING
+    && check_data_valid((struct uv_loop_data*)(loop->data)) != 0) {
+    UV_LOGW("The number of task is too much, task number is %{public}u", loop->active_reqs.count);
+  }
 #endif
   uv_mutex_unlock(&loop->wq_mutex);
 
+  uv_start_trace(UV_TRACE_TAG, UV_TRACE_NAME);
   while (!QUEUE_EMPTY(&wq)) {
     q = QUEUE_HEAD(&wq);
     QUEUE_REMOVE(q);
@@ -708,6 +716,7 @@ void uv__work_done(uv_async_t* handle) {
     post_statistic_work(&dump_work->wq);
 #endif
   }
+  uv_end_trace(UV_TRACE_TAG);
   rdunlock_closed_uv_loop_rwlock();
 }