diff --git a/components/system/source/shell/sh.c b/components/system/source/shell/sh.c
index edabf34..23e3921 100755
--- a/components/system/source/shell/sh.c
+++ b/components/system/source/shell/sh.c
@@ -2955,7 +2955,10 @@ SH_CMD_FN(_cmd_print_help)
 
 SH_CMD_CP_FN(_cmd_print_help_param)
 {
-    _sh_completion_cmd(sh_hdl, argc, argv, 0);
+    if (argc + flag != 2 || (argc >= 1 && (strcmp(argv[0], "help") != 0)))
+    {
+        _sh_completion_cmd(sh_hdl, argc, argv, 0);
+    }
 }
 
 SH_CMD_FN(_cmd_echo_on)