diff --git a/components/bt/host/bluedroid/stack/btu/btu_init.c b/components/bt/host/bluedroid/stack/btu/btu_init.c
index aff092dc35..615fbf8019 100644
--- a/components/bt/host/bluedroid/stack/btu/btu_init.c
+++ b/components/bt/host/bluedroid/stack/btu/btu_init.c
@@ -48,7 +48,7 @@
 #define BTU_TASK_STACK_SIZE             (BT_BTU_TASK_STACK_SIZE + BT_TASK_EXTRA_STACK_SIZE)
 #define BTU_TASK_PRIO                   (BT_TASK_MAX_PRIORITIES - 5)
 #define BTU_TASK_NAME                   "BTU_TASK"
-#define BTU_TASK_WORKQUEUE_NUM          (2)
+#define BTU_TASK_WORKQUEUE_NUM          (1)
 #define BTU_TASK_WORKQUEUE0_LEN         (0)
 
 hash_map_t *btu_general_alarm_hash_map;