diff --git a/samples/dev_model/dev_model_sample_ex.c b/samples/dev_model/dev_model_sample_ex.c
index c4752db..ca147a0 100644
--- a/samples/dev_model/dev_model_sample_ex.c
+++ b/samples/dev_model/dev_model_sample_ex.c
@@ -22,93 +22,10 @@
 #include "uiot_export.h"
 #include "uiot_import.h"
 #include "uiot_export_dm.h"
+#include "dm_property.h"
+#include "dm_event.h"
+#include "dm_command.h"
 
-DM_Property_t property_humidity;
-DM_Node_t node_property_humidity;
-
-DM_Property_t property_temperature;
-DM_Node_t node_property_temperature;
-
-static void _init_data_template(){
-    node_property_humidity.base_type = TYPE_FLOAT;
-    node_property_humidity.key = "humidity";
-    node_property_humidity.value.float32_value = 0.0;
-    property_humidity.parse_type = TYPE_NODE;
-    property_humidity.value.dm_node = &node_property_humidity;
-
-    node_property_temperature.base_type = TYPE_FLOAT;
-    node_property_temperature.key = "temperature";
-    node_property_temperature.value.float32_value = 0.0;
-    property_temperature.parse_type = TYPE_NODE;
-    property_temperature.value.dm_node = &node_property_temperature;
-
-}
-
-DM_Property_t event_high_temp_temperature;
-DM_Node_t node_event_high_temp_temperature;
-
-static void _init_event_property_template(){
-    node_event_high_temp_temperature.base_type = TYPE_FLOAT;
-    node_event_high_temp_temperature.key = "temperature";
-    node_event_high_temp_temperature.value.float32_value = 0.0;
-    event_high_temp_temperature.parse_type = TYPE_NODE;
-    event_high_temp_temperature.value.dm_node = &node_event_high_temp_temperature;
-
-}
-DM_Event_t event_high_temp_warning;
-DM_Property_t high_temp[1];
-
-static void _init_event_template(){
-    _init_event_property_template();
-    high_temp[0] = event_high_temp_temperature;
-    event_high_temp_warning.event_identy = "high_temp";
-    event_high_temp_warning.dm_property = high_temp;
-    event_high_temp_warning.property_num = 1;
-
-}
-
-DM_Property_t cmd_input_set_temp_correction_temp_correction;
-DM_Node_t node_cmd_input_set_temp_correction_temp_correction;
-
-static void _init_command_input_template(){
-    node_cmd_input_set_temp_correction_temp_correction.base_type = TYPE_INT;
-    node_cmd_input_set_temp_correction_temp_correction.key = "temp_correction";
-    node_cmd_input_set_temp_correction_temp_correction.value.int32_value = 0;
-    cmd_input_set_temp_correction_temp_correction.parse_type = TYPE_NODE;
-    cmd_input_set_temp_correction_temp_correction.value.dm_node = &node_cmd_input_set_temp_correction_temp_correction;
-
-}
-static void _input_parse_config(const char *cmd_id, const char *input){
-    if((strlen(cmd_id) == strlen("set_temp_correction")) && (0 == strncmp(cmd_id, "set_temp_correction", strlen("set_temp_correction"))))
-    {
-        char *set_temp_correction_temp_correction = NULL;
-        set_temp_correction_temp_correction = LITE_json_value_of((char *)"temp_correction", (char *)input);
-        node_cmd_input_set_temp_correction_temp_correction.value.int32_value = atoi(set_temp_correction_temp_correction);
-        HAL_Free(set_temp_correction_temp_correction);
-        return;
-    }
-
-}
-DM_Property_t cmd_output_set_temp_correction_correction_result;
-DM_Node_t node_cmd_output_set_temp_correction_correction_result;
-
-DM_Property_t cmd_output_set_temp_correction_effect_temp_correction;
-DM_Node_t node_cmd_output_set_temp_correction_effect_temp_correction;
-
-static void _init_command_output_template(){
-    node_cmd_output_set_temp_correction_correction_result.base_type = TYPE_BOOL;
-    node_cmd_output_set_temp_correction_correction_result.key = "correction_result";
-    node_cmd_output_set_temp_correction_correction_result.value.bool_value = 0;
-    cmd_output_set_temp_correction_correction_result.parse_type = TYPE_NODE;
-    cmd_output_set_temp_correction_correction_result.value.dm_node = &node_cmd_output_set_temp_correction_correction_result;
-
-    node_cmd_output_set_temp_correction_effect_temp_correction.base_type = TYPE_INT;
-    node_cmd_output_set_temp_correction_effect_temp_correction.key = "effect_temp_correction";
-    node_cmd_output_set_temp_correction_effect_temp_correction.value.int32_value = 0;
-    cmd_output_set_temp_correction_effect_temp_correction.parse_type = TYPE_NODE;
-    cmd_output_set_temp_correction_effect_temp_correction.value.dm_node = &node_cmd_output_set_temp_correction_effect_temp_correction;
-
-}
 //用实际设备四元组替换
 #define UIOT_MY_PRODUCT_SN            "PRODUCT_SN"
 
diff --git a/src/dev_model/include/dm_command.h b/src/dev_model/include/dm_command.h
new file mode 100644
index 0000000..08d536b
--- /dev/null
+++ b/src/dev_model/include/dm_command.h
@@ -0,0 +1,15 @@
+#include "uiot_internal.h"
+#include "dm_internal.h"
+
+extern DM_Property_t cmd_input_set_temp_correction_temp_correction;
+extern DM_Node_t node_cmd_input_set_temp_correction_temp_correction;
+
+void _init_command_input_template();
+extern DM_Property_t cmd_output_set_temp_correction_correction_result;
+extern DM_Node_t node_cmd_output_set_temp_correction_correction_result;
+
+extern DM_Property_t cmd_output_set_temp_correction_effect_temp_correction;
+extern DM_Node_t node_cmd_output_set_temp_correction_effect_temp_correction;
+
+void _init_command_output_template();
+void _input_parse_config(const char *cmd_id, const char *input);
diff --git a/src/dev_model/include/dm_event.h b/src/dev_model/include/dm_event.h
new file mode 100644
index 0000000..4ce075b
--- /dev/null
+++ b/src/dev_model/include/dm_event.h
@@ -0,0 +1,11 @@
+#include "uiot_internal.h"
+#include "dm_internal.h"
+
+extern DM_Property_t event_high_temp_temperature;
+extern DM_Node_t node_event_high_temp_temperature;
+
+void _init_event_property_template();
+extern DM_Event_t event_high_temp_warning;
+extern DM_Property_t high_temp[1];
+
+void _init_event_template();
diff --git a/src/dev_model/include/dm_property.h b/src/dev_model/include/dm_property.h
new file mode 100644
index 0000000..07dd846
--- /dev/null
+++ b/src/dev_model/include/dm_property.h
@@ -0,0 +1,10 @@
+#include "uiot_internal.h"
+#include "dm_internal.h"
+
+extern DM_Property_t property_humidity;
+extern DM_Node_t node_property_humidity;
+
+extern DM_Property_t property_temperature;
+extern DM_Node_t node_property_temperature;
+
+void _init_data_template();
diff --git a/tools/dm_gen/command_config.c b/src/dev_model/src/dm_command_config.c
similarity index 93%
rename from tools/dm_gen/command_config.c
rename to src/dev_model/src/dm_command_config.c
index febe12e..9cb062b 100644
--- a/tools/dm_gen/command_config.c
+++ b/src/dev_model/src/dm_command_config.c
@@ -1,7 +1,8 @@
+#include "dm_command.h"
 DM_Property_t cmd_input_set_temp_correction_temp_correction;
 DM_Node_t node_cmd_input_set_temp_correction_temp_correction;
 
-static void _init_command_input_template(){
+void _init_command_input_template(){
     node_cmd_input_set_temp_correction_temp_correction.base_type = TYPE_INT;
     node_cmd_input_set_temp_correction_temp_correction.key = "temp_correction";
     node_cmd_input_set_temp_correction_temp_correction.value.int32_value = 0;
@@ -9,7 +10,7 @@ static void _init_command_input_template(){
     cmd_input_set_temp_correction_temp_correction.value.dm_node = &node_cmd_input_set_temp_correction_temp_correction;
 
 }
-static void _input_parse_config(const char *cmd_id, const char *input){
+void _input_parse_config(const char *cmd_id, const char *input){
     if((strlen(cmd_id) == strlen("set_temp_correction")) && (0 == strncmp(cmd_id, "set_temp_correction", strlen("set_temp_correction"))))
     {
         char *set_temp_correction_temp_correction = NULL;
@@ -26,7 +27,7 @@ DM_Node_t node_cmd_output_set_temp_correction_correction_result;
 DM_Property_t cmd_output_set_temp_correction_effect_temp_correction;
 DM_Node_t node_cmd_output_set_temp_correction_effect_temp_correction;
 
-static void _init_command_output_template(){
+void _init_command_output_template(){
     node_cmd_output_set_temp_correction_correction_result.base_type = TYPE_BOOL;
     node_cmd_output_set_temp_correction_correction_result.key = "correction_result";
     node_cmd_output_set_temp_correction_correction_result.value.bool_value = 0;
diff --git a/tools/dm_gen/event_config.c b/src/dev_model/src/dm_event_config.c
similarity index 89%
rename from tools/dm_gen/event_config.c
rename to src/dev_model/src/dm_event_config.c
index a34c289..61005bf 100644
--- a/tools/dm_gen/event_config.c
+++ b/src/dev_model/src/dm_event_config.c
@@ -1,7 +1,8 @@
+#include "dm_event.h"
 DM_Property_t event_high_temp_temperature;
 DM_Node_t node_event_high_temp_temperature;
 
-static void _init_event_property_template(){
+void _init_event_property_template(){
     node_event_high_temp_temperature.base_type = TYPE_FLOAT;
     node_event_high_temp_temperature.key = "temperature";
     node_event_high_temp_temperature.value.float32_value = 0.0;
@@ -12,7 +13,7 @@ static void _init_event_property_template(){
 DM_Event_t event_high_temp_warning;
 DM_Property_t high_temp[1];
 
-static void _init_event_template(){
+void _init_event_template(){
     _init_event_property_template();
     high_temp[0] = event_high_temp_temperature;
     event_high_temp_warning.event_identy = "high_temp";
diff --git a/tools/dm_gen/property_config.c b/src/dev_model/src/dm_property_config.c
similarity index 92%
rename from tools/dm_gen/property_config.c
rename to src/dev_model/src/dm_property_config.c
index 62331d4..025e98d 100644
--- a/tools/dm_gen/property_config.c
+++ b/src/dev_model/src/dm_property_config.c
@@ -1,10 +1,11 @@
+#include "dm_property.h"
 DM_Property_t property_humidity;
 DM_Node_t node_property_humidity;
 
 DM_Property_t property_temperature;
 DM_Node_t node_property_temperature;
 
-static void _init_data_template(){
+void _init_data_template(){
     node_property_humidity.base_type = TYPE_FLOAT;
     node_property_humidity.key = "humidity";
     node_property_humidity.value.float32_value = 0.0;
diff --git a/tools/dm_gen/codegen.py b/tools/dm_gen/codegen.py
index cdfe0b4..d5f4205 100644
--- a/tools/dm_gen/codegen.py
+++ b/tools/dm_gen/codegen.py
@@ -97,6 +97,30 @@ class iot_filed:
             declar_info += "DM_Node_t node_{};\n".format("{}_".format(self.prefix) + self.id)
             return declar_info
 
+    def get_property_extern_declar_name(self):
+        extern_declar_info = ""
+        if self.type_name == "struct":
+            extern_declar_info += "extern DM_Property_t {};\n".format("{}_".format(self.prefix) + self.id)
+            extern_declar_info += "extern DM_Type_Struct_t st_{};\n".format("{}_".format(self.prefix) + self.id)
+            extern_declar_info += "extern DM_Node_t node_{}[{}];\n".format("{}_".format(self.prefix) + self.id, self.struct_member_num)
+            return extern_declar_info
+        elif self.type_name == "array":
+            if self.item_type == "struct":
+                extern_declar_info += "extern DM_Property_t {};\n".format("{}_".format(self.prefix) + self.id)
+                extern_declar_info += "extern DM_Array_Struct_t arr_st_{};\n".format("{}_".format(self.prefix) + self.id)
+                extern_declar_info += "extern DM_Type_Struct_t st_{}[{}];\n".format("{}_".format(self.prefix) + self.id, self.array_num)
+                extern_declar_info += "extern DM_Node_t node_{}[{}][{}];\n".format("{}_".format(self.prefix) + self.id, self.array_num, self.item_member_num)
+                return extern_declar_info
+            else:
+                extern_declar_info += "extern DM_Property_t {};\n".format("{}_".format(self.prefix) + self.id)
+                extern_declar_info += "extern DM_Array_Base_t arr_base_{};\n".format("{}_".format(self.prefix) + self.id)
+                extern_declar_info += "extern DM_Node_t node_{}[{}];\n".format("{}_".format(self.prefix) + self.id, self.array_num)
+                return extern_declar_info
+        else:
+            extern_declar_info += "extern DM_Property_t {};\n".format("{}_".format(self.prefix) + self.id)
+            extern_declar_info += "extern DM_Node_t node_{};\n".format("{}_".format(self.prefix) + self.id)
+            return extern_declar_info
+
     def get_property_config_member(self):
         config_info = ""
         loop = 0
@@ -206,6 +230,12 @@ class iot_event:
         declar_info += "DM_Property_t {}[{}];\n".format(self.id, self.output_num)
         return declar_info
 
+    def get_event_extern_declar_name(self):
+        extern_declar_info = ""
+        extern_declar_info += "extern DM_Event_t event_{}_{};\n".format(self.id, self.type_name)
+        extern_declar_info += "extern DM_Property_t {}[{}];\n".format(self.id, self.output_num)
+        return extern_declar_info
+
     def get_event_config_member(self):
         config_info = ""
         loop = 0
@@ -349,8 +379,9 @@ class iot_json_parse:
 
     def gen_data_config(self):
         declar = ""
+        declar += "#include \"dm_property.h\"\n"
         config = ""
-        config += "static void _init_data_template(){\n"
+        config += "void _init_data_template(){\n"
         for field in self.fields:
             declar += "{}\n".format(field.get_property_declar_name())
             config += "{}\n".format(field.get_property_config_member())
@@ -358,10 +389,20 @@ class iot_json_parse:
         result = declar + config
         return result
 
+    def gen_data_inc(self):
+        extern_data_inc = ""
+        extern_data_inc += "#include \"uiot_internal.h\"\n"
+        extern_data_inc += "#include \"dm_internal.h\"\n\n"
+        for field in self.fields:
+            extern_data_inc += "{}\n".format(field.get_property_extern_declar_name())
+        extern_data_inc += "void _init_data_template();\n"
+        return extern_data_inc
+
     def gen_event_config(self):
         properties_declar = ""
+        properties_declar += "#include \"dm_event.h\"\n"
         properties_config = ""
-        properties_config += "static void _init_event_property_template(){\n"
+        properties_config += "void _init_event_property_template(){\n"
         for event_properties in self.events_properties:
             properties_declar += "{}\n".format(event_properties.get_property_declar_name())
             properties_config += "{}\n".format(event_properties.get_property_config_member())
@@ -369,7 +410,7 @@ class iot_json_parse:
 
         event_declar = ""
         event_config = ""
-        event_config += "static void _init_event_template(){\n"
+        event_config += "void _init_event_template(){\n"
         event_config += "    _init_event_property_template();\n"
         for event_obj in self.events:
             event_declar += "{}\n".format(event_obj.get_event_declar_name())
@@ -378,24 +419,40 @@ class iot_json_parse:
         result = properties_declar + properties_config + event_declar + event_config
         return result
 
+    def gen_event_inc(self):
+        properties_extern_inc = ""
+        properties_extern_inc += "#include \"uiot_internal.h\"\n"
+        properties_extern_inc += "#include \"dm_internal.h\"\n\n"
+        for event_properties in self.events_properties:
+            properties_extern_inc += "{}\n".format(event_properties.get_property_extern_declar_name())
+        properties_extern_inc += "void _init_event_property_template();\n"
+
+        event_extern_inc = ""
+        for event_obj in self.events:
+            event_extern_inc += "{}\n".format(event_obj.get_event_extern_declar_name())
+        event_extern_inc += "void _init_event_template();\n"
+        result = properties_extern_inc + event_extern_inc
+        return result
+
     def gen_command_config(self):
         cmd_input_declar = ""
+        cmd_input_declar += "#include \"dm_command.h\"\n"
         cmd_input_config = ""
-        cmd_input_config += "static void _init_command_input_template(){\n"
+        cmd_input_config += "void _init_command_input_template(){\n"
         for command_input_property in self.input:
             cmd_input_declar += "{}\n".format(command_input_property.get_property_declar_name())
             cmd_input_config += "{}\n".format(command_input_property.get_property_config_member())
         cmd_input_config += "}\n"
 
         cmd_input_parse = ""
-        cmd_input_parse += "static void _input_parse_config(const char *cmd_id, const char *input){\n"
+        cmd_input_parse += "void _input_parse_config(const char *cmd_id, const char *input){\n"
         for cmd_input_parse_item in self.input_parse:
             cmd_input_parse += "{}\n".format(cmd_input_parse_item.get_input_config())
         cmd_input_parse += "}\n"
 
         cmd_output_declar = ""
         cmd_output_config = ""
-        cmd_output_config += "static void _init_command_output_template(){\n"
+        cmd_output_config += "void _init_command_output_template(){\n"
         for command_output_property in self.output:
             cmd_output_declar += "{}\n".format(command_output_property.get_property_declar_name())
             cmd_output_config += "{}\n".format(command_output_property.get_property_config_member())
@@ -403,6 +460,22 @@ class iot_json_parse:
         result = cmd_input_declar + cmd_input_config + cmd_input_parse + cmd_output_declar + cmd_output_config
         return result
 
+    def gen_command_inc(self):
+        cmd_input_extern_inc = ""
+        cmd_input_extern_inc += "#include \"uiot_internal.h\"\n"
+        cmd_input_extern_inc += "#include \"dm_internal.h\"\n\n"
+        for command_input_property in self.input:
+            cmd_input_extern_inc += "{}\n".format(command_input_property.get_property_extern_declar_name())
+        cmd_input_extern_inc += "void _init_command_input_template();\n"
+
+        cmd_output_extern_inc = ""
+        for command_output_property in self.output:
+            cmd_output_extern_inc += "{}\n".format(command_output_property.get_property_extern_declar_name())
+        cmd_output_extern_inc += "void _init_command_output_template();\n"
+        cmd_output_extern_inc += "void _input_parse_config(const char *cmd_id, const char *input);\n"
+        result = cmd_input_extern_inc + cmd_output_extern_inc
+        return result
+
 def main():
     parser = argparse.ArgumentParser(description='Iothub datatemplate events and command config code generator.', usage='use "./codegen.py -c xx/config.json" gen config code')
     parser.add_argument('-c', '--config', dest='config', metavar='xxx.json', required=False, default='xxx.json',
@@ -441,25 +514,42 @@ def main():
     try:
         snippet = iot_json_parse(thingmodel)
 
-        output_data_config_file_name = args.dest + "/property_config.c"
+        output_data_config_file_name = args.dest + "/dm_property_config.c"
         output_file = open(output_data_config_file_name, "w")
         output_file.write("{}".format(snippet.gen_data_config()))
         output_file.close()
 
-        output_event_config_file_name = args.dest + "/event_config.c"
+        output_data_inc_file_name = args.dest + "/dm_property.h"
+        output_file = open(output_data_inc_file_name, "w")
+        output_file.write("{}".format(snippet.gen_data_inc()))
+        output_file.close()
+
+        output_event_config_file_name = args.dest + "/dm_event_config.c"
         output_file = open(output_event_config_file_name, "w")
         output_file.write("{}".format(snippet.gen_event_config()))
         output_file.close()
 
-        output_command_config_file_name = args.dest + "/command_config.c"
+        output_event_inc_file_name = args.dest + "/dm_event.h"
+        output_file = open(output_event_inc_file_name, "w")
+        output_file.write("{}".format(snippet.gen_event_inc()))
+        output_file.close()
+
+        output_command_config_file_name = args.dest + "/dm_command_config.c"
         output_file = open(output_command_config_file_name, "w")
         output_file.write("{}".format(snippet.gen_command_config()))
         output_file.close()
 
-        print(u"file {} release successful".format(output_data_config_file_name))
-        print(u"file {} release successful".format(output_event_config_file_name))
-        print(u"file {} release successful".format(output_command_config_file_name))
+        output_command_inc_file_name = args.dest + "/dm_command.h"
+        output_file = open(output_command_inc_file_name, "w")
+        output_file.write("{}".format(snippet.gen_command_inc()))
+        output_file.close()
 
+        print(u"file {} release successful".format(output_data_config_file_name))
+        print(u"file {} release successful".format(output_data_inc_file_name))
+        print(u"file {} release successful".format(output_event_config_file_name))
+        print(u"file {} release successful".format(output_event_inc_file_name))
+        print(u"file {} release successful".format(output_command_config_file_name))
+        print(u"file {} release successful".format(output_command_inc_file_name))
         return 0
     except ValueError as e:
         print(e)