diff --git a/package/rtthread/rt_pika.c b/package/rtthread/rt_pika.c
index fad73c097..fd2006fd0 100644
--- a/package/rtthread/rt_pika.c
+++ b/package/rtthread/rt_pika.c
@@ -5,13 +5,13 @@
  *
  * Change Logs:
  * Date           Author       Notes
- * 2021-12-07     lyon       the first version
+ * 2021-12-07     lyon         the first version
+ * 2021-12-08     Meco Man     reimplement init
  */
 #include <rtthread.h>
 #include <pikaScript.h>
 
-
-#define PIKASCRIPT_STACK_SIZE   1024
+#define PIKASCRIPT_STACK_SIZE   4096
 #define PIKASCRIPT_STACK_PRIO   20
 
 static void pikascript_entry(void *parameter)
@@ -38,5 +38,4 @@ static int rt_pika_init(void)
 
     return 0;
 }
-
 INIT_APP_EXPORT(rt_pika_init);