diff --git a/src/BaseObj.h b/src/BaseObj.h
index 4ceaf2277..4cf608ded 100644
--- a/src/BaseObj.h
+++ b/src/BaseObj.h
@@ -28,9 +28,9 @@
 #ifndef _PikaObj_baseObj__H
 #define _PikaObj_baseObj__H
 #include "PikaObj.h"
+#include "PikaVM.h"
 #include "TinyObj.h"
 #include "dataMemory.h"
-#include "PikaVM.h"
 PikaObj* New_BaseObj(Args* args);
 int32_t obj_newObjFromClassLoader(PikaObj* self,
                                   char* objPath,
diff --git a/src/PikaObj.c b/src/PikaObj.c
index 91d756014..b4747da50 100644
--- a/src/PikaObj.c
+++ b/src/PikaObj.c
@@ -305,7 +305,7 @@ void* getNewClassObjFunByName(PikaObj* obj, char* name) {
 }
 
 int32_t __foreach_removeMethodInfo(Arg* argNow, Args* argList) {
-    if (arg_getType(argNow) == ARG_TYPE_STATIC_METHOD) {
+    if (arg_getType(argNow) == ARG_TYPE_NATIVE_METHOD) {
         args_removeArg(argList, argNow);
         return 0;
     }
@@ -452,12 +452,12 @@ exit:
     return res;
 }
 
-/* define a static method as default */
+/* define a native method as default */
 int32_t class_defineMethod(PikaObj* self,
                            char* declearation,
                            Method methodPtr) {
     return __class_defineMethodWithType(self, declearation, methodPtr,
-                                        ARG_TYPE_STATIC_METHOD);
+                                        ARG_TYPE_NATIVE_METHOD);
 }
 
 /* define object method, object method is which startwith (self) */
@@ -468,6 +468,14 @@ int32_t class_defineObjectMethod(PikaObj* self,
                                         ARG_TYPE_OBJECT_METHOD);
 }
 
+/* define a static method as default */
+int32_t class_defineStaticMethod(PikaObj* self,
+                                 char* declearation,
+                                 Method methodPtr) {
+    return __class_defineMethodWithType(self, declearation, methodPtr,
+                                        ARG_TYPE_STATIC_METHOD);
+}
+
 PIKA_WEAK int __runExtern_contral(PikaObj* self, char* cmd) {
     return 0;
 }
diff --git a/src/PikaObj.h b/src/PikaObj.h
index 1b383f656..771d0c7cb 100644
--- a/src/PikaObj.h
+++ b/src/PikaObj.h
@@ -110,9 +110,15 @@ int32_t obj_freeObj(PikaObj* self, char* subObjectName);
 
 /* method */
 int32_t class_defineMethod(PikaObj* self, char* declearation, Method methodPtr);
+
 int32_t class_defineObjectMethod(PikaObj* self,
                                  char* declearation,
                                  Method methodPtr);
+
+int32_t class_defineStaticMethod(PikaObj* self,
+                                 char* declearation,
+                                 Method methodPtr);
+
 int32_t obj_removeArg(PikaObj* self, char* argPath);
 int32_t obj_isArgExist(PikaObj* self, char* argPath);
 PikaObj* obj_getClassObjByNewFun(PikaObj* self, char* name, NewFun newClassFun);
diff --git a/src/PikaVM.c b/src/PikaVM.c
index 0684020fe..5c20a82d7 100644
--- a/src/PikaVM.c
+++ b/src/PikaVM.c
@@ -368,19 +368,18 @@ static Arg* VM_instruction_handler_RUN(PikaObj* self, VMState* vs, char* data) {
 
     /* run method */
     method_code = (char*)method_ptr;
-    if (method_code[0] == 'B' && method_code[2] == '\n') {
-        /* VM method */
-        sub_locals = pikaVM_runAsmWithPars(method_host_obj, sub_locals,
-                                           vs->globals, method_code);
-        /* get method return */
-        return_arg = arg_copy(args_getArg(sub_locals->list, (char*)"return"));
-    } else {
+    if (method_type == ARG_TYPE_NATIVE_METHOD) {
         /* native method */
         method_ptr(method_host_obj, sub_locals->list);
         /* get method return */
         return_arg = arg_copy(args_getArg(sub_locals->list, (char*)"return"));
+    } else {
+        /* static method and object method */
+        sub_locals = pikaVM_runAsmWithPars(method_host_obj, sub_locals,
+                                           vs->globals, method_code);
+        /* get method return */
+        return_arg = arg_copy(args_getArg(sub_locals->list, (char*)"return"));
     }
-
     /* transfer sysOut */
     sys_out = obj_getSysOut(method_host_obj);
     if (NULL != sys_out) {
@@ -713,7 +712,8 @@ static Arg* VM_instruction_handler_DEF(PikaObj* self, VMState* vs, char* data) {
                     class_defineObjectMethod(hostObj, data,
                                              (Method)ins_unit_now);
                 } else {
-                    class_defineMethod(hostObj, data, (Method)ins_unit_now);
+                    class_defineStaticMethod(hostObj, data,
+                                             (Method)ins_unit_now);
                 }
                 break;
             }
@@ -727,7 +727,7 @@ static Arg* VM_instruction_handler_DEF(PikaObj* self, VMState* vs, char* data) {
                 if (is_in_class) {
                     class_defineObjectMethod(hostObj, data, (Method)methodPtr);
                 } else {
-                    class_defineMethod(hostObj, data, (Method)methodPtr);
+                    class_defineStaticMethod(hostObj, data, (Method)methodPtr);
                 }
                 break;
             }
diff --git a/src/dataArg.h b/src/dataArg.h
index e41ed284c..c0fa645ad 100644
--- a/src/dataArg.h
+++ b/src/dataArg.h
@@ -42,8 +42,9 @@ typedef enum {
     ARG_TYPE_OBJECT,
     ARG_TYPE_MATE_OBJECT,
     ARG_TYPE_FREE_OBJECT,
-    ARG_TYPE_STATIC_METHOD,
+    ARG_TYPE_NATIVE_METHOD,
     ARG_TYPE_OBJECT_METHOD,
+    ARG_TYPE_STATIC_METHOD,
 } ArgType;
 
 typedef struct __arg __arg;