diff --git a/shell/include/shell_lk.h b/shell/include/shell_lk.h
index 01a78c28b3bd3973407da38e255d0981f59f3f81..e851f0fc7597672d836a9c9f4c500f8b369b7296 100644
--- a/shell/include/shell_lk.h
+++ b/shell/include/shell_lk.h
@@ -111,6 +111,42 @@ extern VOID LOS_LkPrint(INT32 level, const CHAR *func, INT32 line, const CHAR *f
  */
 extern VOID LOS_LkRegHook(LK_FUNC hook);
 
+/**
+ * @ingroup shell_lk
+ * @brief get print level.
+ *
+ * @par Description:
+ * <ul>
+ * <li>This API is used to get the LK print level.</li>
+ * </ul>
+ *
+ * @param None
+ *
+ * @retval #INT32 print level
+ * @par Dependency:
+ * <ul><li>shell_lk.h: the header file that contains the API declaration.</li></ul>
+ * @since Huawei LiteOS V200R001C00
+ */
+extern INT32 LOS_LkTraceLvGet(VOID);
+
+/**
+ * @ingroup shell_lk
+ * @brief set print level.
+ *
+ * @par Description:
+ * <ul>
+ * <li>This API is used to set the LK print level.</li>
+ * </ul>
+ *
+ * @param #INT32 print level
+ *
+ * @retval None
+ * @par Dependency:
+ * <ul><li>shell_lk.h: the header file that contains the API declaration.</li></ul>
+ * @since Huawei LiteOS V200R001C00
+ */
+extern VOID LOS_LkTraceLvSet(INT32 level);
+
 #ifdef __cplusplus
 #if __cplusplus
 }
diff --git a/shell/src/base/shell_lk.c b/shell/src/base/shell_lk.c
index 51f166dbc6d2460459b770b12095e9fc7dbc7f07..1e9838dc3cc5cc1e498a4bb8c33274285767d7fe 100644
--- a/shell/src/base/shell_lk.c
+++ b/shell/src/base/shell_lk.c
@@ -87,7 +87,7 @@ VOID OsLkDefaultFunc(INT32 level, const CHAR *func, INT32 line, const CHAR *fmt,
 
 LK_FUNC g_osLkHook = (LK_FUNC)OsLkDefaultFunc;
 
-STATIC INLINE INT32 OsLkTraceLvGet(VOID)
+INT32 LOS_LkTraceLvGet(VOID)
 {
     return g_traceLevel;
 }
@@ -102,7 +102,7 @@ const CHAR *OsLkLogLvGet(INT32 level)
     return g_logString[level];
 }
 
-VOID OsLkTraceLvSet(INT32 level)
+VOID LOS_LkTraceLvSet(INT32 level)
 {
     g_traceLevel = level;
     g_logger.traceLevel = level;
@@ -162,7 +162,7 @@ INT32 CmdLog(INT32 argc, const CHAR **argv)
             PRINTK("current log level %s\n", OsLkCurLogLvGet());
             PRINTK("log %s [num] can access as 0:EMG 1:COMMOM 2:ERROR 3:WARN 4:INFO 5:DEBUG\n", argv[0]);
         } else {
-            OsLkTraceLvSet(level);
+            LOS_LkTraceLvSet(level);
             PRINTK("Set current log level %s\n", OsLkCurLogLvGet());
         }
     } else if (!strncmp(argv[0], "module", strlen(argv[0]) + 1)) {
@@ -204,7 +204,7 @@ VOID OsLkDefaultFunc(INT32 level, const CHAR *func, INT32 line, const CHAR *fmt,
 {
     (VOID)func;
     (VOID)line;
-    if (level > OsLkTraceLvGet()) {
+    if (level > LOS_LkTraceLvGet()) {
 #ifdef LOSCFG_SHELL_DMESG
         if ((UINT32)level <= OsDmesgLvGet()) {
             OsLogCycleRecord(level);
@@ -238,7 +238,7 @@ VOID OsLkLoggerInit(const CHAR *str)
 {
     (VOID)str;
     (VOID)memset_s(&g_logger, sizeof(Logger), 0, sizeof(Logger));
-    OsLkTraceLvSet(TRACE_DEFAULT);
+    LOS_LkTraceLvSet(TRACE_DEFAULT);
     LOS_LkRegHook(OsLkDefaultFunc);
 #ifdef LOSCFG_SHELL_DMESG
     (VOID)LOS_DmesgLvSet(TRACE_DEFAULT);