diff --git a/tools/rom_ram_analyzer/lite_small/__init__.py b/tools/rom_ram_analyzer/lite_small/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..dba10663d6002d939e496189e557bcbc8d2cc385 100644
--- a/tools/rom_ram_analyzer/lite_small/__init__.py
+++ b/tools/rom_ram_analyzer/lite_small/__init__.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is only for indication this folder is a python package.
\ No newline at end of file
diff --git a/tools/rom_ram_analyzer/lite_small/pkgs/__init__.py b/tools/rom_ram_analyzer/lite_small/pkgs/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..583ec11ef1ce6d5887efb49e650bed0da67dbe94 100644
--- a/tools/rom_ram_analyzer/lite_small/pkgs/__init__.py
+++ b/tools/rom_ram_analyzer/lite_small/pkgs/__init__.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file only indicates that the directory it resides is a python package
\ No newline at end of file
diff --git a/tools/rom_ram_analyzer/lite_small/pkgs/basic_tool.py b/tools/rom_ram_analyzer/lite_small/pkgs/basic_tool.py
index b04afab5ba43bf6ab2f8468345d4011aa9d6a163..512ed597072bdb0476d7bac3e065f480f567dfbe 100644
--- a/tools/rom_ram_analyzer/lite_small/pkgs/basic_tool.py
+++ b/tools/rom_ram_analyzer/lite_small/pkgs/basic_tool.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # Copyright (c) 2022 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/tools/rom_ram_analyzer/lite_small/pkgs/gn_common_tool.py b/tools/rom_ram_analyzer/lite_small/pkgs/gn_common_tool.py
index 66ebb212c3068dff707d410d84543dec23e0bdd6..d12eb4b68b2a4959faa2d2d4aa3cca2520a50943 100644
--- a/tools/rom_ram_analyzer/lite_small/pkgs/gn_common_tool.py
+++ b/tools/rom_ram_analyzer/lite_small/pkgs/gn_common_tool.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # Copyright (c) 2022 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -11,8 +12,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-#
 
+# This file contains some Classes for gn's BUILD.gn
 
 import os
 import logging
diff --git a/tools/rom_ram_analyzer/lite_small/pkgs/simple_excel_writer.py b/tools/rom_ram_analyzer/lite_small/pkgs/simple_excel_writer.py
index 94a9496fc81cb6bf2ca7de759f4d13eddb19c1a7..da6f3c6e1b9a1ce513e8a8867614c4acc9a2ec92 100644
--- a/tools/rom_ram_analyzer/lite_small/pkgs/simple_excel_writer.py
+++ b/tools/rom_ram_analyzer/lite_small/pkgs/simple_excel_writer.py
@@ -1,3 +1,21 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file contains a SimpleExcelWriter, which is a implemented based on xlwt for easy use.
+
+
 import xlwt
 from xlwt import Worksheet, Pattern as PTRN, Alignment as ALGT, Font as FT, XFStyle as XFSL
 import typing
diff --git a/tools/rom_ram_analyzer/lite_small/pkgs/simple_yaml_tool.py b/tools/rom_ram_analyzer/lite_small/pkgs/simple_yaml_tool.py
index 5edf61253bde45592ec8017e08e1fd2d0a1d0bec..32cb530bc6026ed2c44a9662170fb378dcb15cf2 100644
--- a/tools/rom_ram_analyzer/lite_small/pkgs/simple_yaml_tool.py
+++ b/tools/rom_ram_analyzer/lite_small/pkgs/simple_yaml_tool.py
@@ -1,3 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file contains a SimpleYamlTool, which is a implemented based on the package named yaml for easy use.
+
 import yaml
 from typing import *
 from yaml.loader import SafeLoader
diff --git a/tools/rom_ram_analyzer/lite_small/src/__init__.py b/tools/rom_ram_analyzer/lite_small/src/__init__.py
index 341988ca1a71b67e2a0026761e587dc5e9afb919..aafe597613969e63776ad0916750e70381e11c6e 100644
--- a/tools/rom_ram_analyzer/lite_small/src/__init__.py
+++ b/tools/rom_ram_analyzer/lite_small/src/__init__.py
@@ -1 +1,18 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file only indicates that the directory it resides is a python package
+
 VERSION = 1.0
diff --git a/tools/rom_ram_analyzer/lite_small/src/config.py b/tools/rom_ram_analyzer/lite_small/src/config.py
index fd8af4a4ecade080be6fb2890ba223b01e85c35b..a557af603fa1d3cc3fe226734cfd12bb30bfbf7b 100644
--- a/tools/rom_ram_analyzer/lite_small/src/config.py
+++ b/tools/rom_ram_analyzer/lite_small/src/config.py
@@ -1,3 +1,22 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is a configuration for scaning the BUILD.gn to collection compile 
+# products.
+
+
 import os
 import sys
 import argparse
diff --git a/tools/rom_ram_analyzer/lite_small/src/config.yaml b/tools/rom_ram_analyzer/lite_small/src/config.yaml
index 17f5568fb9a3b3d09b06f3739327ff7c51b36738..f3394b2bc210a5392e27ec0fd0cc0c805c82d9a0 100644
--- a/tools/rom_ram_analyzer/lite_small/src/config.yaml
+++ b/tools/rom_ram_analyzer/lite_small/src/config.yaml
@@ -167,9 +167,9 @@ hispark_pegasus_mini_system:
       - lite_library
       - target
 
-rk3568: # rk的目前从packages/phone/system_module_info.json中分析准确度更高,因为rk基本都使用的是ohos_xxx,而lite/small的更多的是使用的gn原生target template
-  product_infofile: rk3568_product.json
-  output_name: rk3568_result.json
+rk3568_mini_system: # rk的目前从packages/phone/system_module_info.json中分析准确度更高,因为rk基本都使用的是ohos_xxx,而lite/small的更多的是使用的gn原生target template
+  product_infofile: rk3568_mini_system_product.json
+  output_name: rk3568_mini_system_result.json
   product_dir:
     root: out/rk3568/packages/phone/system
     relative:
diff --git a/tools/rom_ram_analyzer/lite_small/src/get_subsystem_component.py b/tools/rom_ram_analyzer/lite_small/src/get_subsystem_component.py
index 3ed38473a4da4b46c15bc8526f823722ff47ec60..2dbd476722d5b6360650840a19e67e196a472c8e 100644
--- a/tools/rom_ram_analyzer/lite_small/src/get_subsystem_component.py
+++ b/tools/rom_ram_analyzer/lite_small/src/get_subsystem_component.py
@@ -1,4 +1,20 @@
-#! /usr/bin/python
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is for get the mapping relationship of subsystem_name/component_name
+# and their directory. The code is from Yude Chen.
 
 import argparse
 import os
@@ -25,7 +41,7 @@ def get_subsystem_components(ohos_path: str):
         if not os.path.exists(subsystem_path):
             g_subsystem_path_error.append(subsystem_path)
             continue
-        cmd = 'find ' + subsystem_path + ' -name bundle.json'
+        cmd = 'find {} -name bundle.json'.format(subsystem_path)
         bundle_json_list = os.popen(cmd).readlines()
         # get components
         component_list = []
@@ -41,7 +57,7 @@ def get_subsystem_components(ohos_path: str):
                     g_component_abs_path.append(destpath)
             else:
                 component_item[bundle_json["component"]["name"]
-                               ] = "Unknow. Please check " + bundle_path
+                               ] = "Unknow. Please check {}".format(bundle_path)
                 g_component_path_empty.append(bundle_path)
             component_list.append(component_item)
         subsystem_item[subsystem_name] = component_list
@@ -65,7 +81,7 @@ def export_to_json(subsystem_item: dict, output_filename: str):
         subsystem_item, indent=4, separators=(', ', ': '))
     with open(output_filename, 'w') as f:
         f.write(subsystem_item_json)
-    logging.info("output path: " + output_filename)
+    logging.info("output path: {}".format(output_filename))
 
 
 def parse_args():
@@ -77,7 +93,7 @@ def parse_args():
 
     ohos_path = os.path.abspath(args.project)
     if not is_project(ohos_path):
-        logging.error("'" + ohos_path + "' is not a valid project path.")
+        logging.error("'{}' is not a valid project path.".format(ohos_path))
         exit(1)
 
     output_path = r'.'
@@ -93,7 +109,7 @@ def is_project(path: str) -> bool:
     @note: 通过是否含有 .repo/manifests 目录粗略判断。
     '''
     p = os.path.normpath(path)
-    return os.path.exists(p + '/.repo/manifests')
+    return os.path.exists('{}/.repo/manifests'.format(p))
 
 
 def print_warning_info():
@@ -126,6 +142,7 @@ __all__ = ["SC"]
 
 if __name__ == '__main__':
     ohos_path, output_path = parse_args()
-    info = get_subsystem_components_modified(ohos_path)
-    export_to_json(info, output_path)
-    print_warning_info()
+    # info = get_subsystem_components_modified(ohos_path)
+    # export_to_json(info, output_path)
+    # print_warning_info()
+    SC.run(ohos_path, output_path)
diff --git a/tools/rom_ram_analyzer/lite_small/src/misc.py b/tools/rom_ram_analyzer/lite_small/src/misc.py
index bc079a6cce32ae54cdf4428c93311c9a37c11892..79af85b24908635072d1c8dd9cf9cfd0d933a2de 100644
--- a/tools/rom_ram_analyzer/lite_small/src/misc.py
+++ b/tools/rom_ram_analyzer/lite_small/src/misc.py
@@ -1,3 +1,21 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is for get the mapping relationship of subsystem_name/component_name
+# and their directory. The code is from Yude Chen.
+
 import logging
 import copy
 import os
diff --git a/tools/rom_ram_analyzer/lite_small/src/preprocess.py b/tools/rom_ram_analyzer/lite_small/src/preprocess.py
index 19b9ae9b7dac22c0490e5ff2014593ab7f4041c9..6f8ce5e287cc42292e4a0daf6a0392687f834f1b 100644
--- a/tools/rom_ram_analyzer/lite_small/src/preprocess.py
+++ b/tools/rom_ram_analyzer/lite_small/src/preprocess.py
@@ -1,3 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is writting for do some preprocess work
+
 import sys
 import os
 # 将上级目录加入到库的搜索路径
diff --git a/tools/rom_ram_analyzer/lite_small/src/rom_analysis.py b/tools/rom_ram_analyzer/lite_small/src/rom_analysis.py
index e8e7b972b16e9009adbdcd61b216cf6a9410f2fc..e9255398266c667e124ad3e9a604b02dcf360a8e 100644
--- a/tools/rom_ram_analyzer/lite_small/src/rom_analysis.py
+++ b/tools/rom_ram_analyzer/lite_small/src/rom_analysis.py
@@ -1,3 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is for rom analyzation of lite/small devices.
+
 import sys
 import argparse
 import json
diff --git a/tools/rom_ram_analyzer/lite_small/src/template_processor.py b/tools/rom_ram_analyzer/lite_small/src/template_processor.py
index 8e3a9e4ce1ad28fb6f73656418adaaf786dab645..64d19a479026cee67490d21c976d7d6ad75c5d16 100644
--- a/tools/rom_ram_analyzer/lite_small/src/template_processor.py
+++ b/tools/rom_ram_analyzer/lite_small/src/template_processor.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # Copyright (c) 2022 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -11,7 +12,9 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-#
+
+# This file contains some template processor to collection information 
+# from some gn's template in BUILD.gn
 
 from typing import *
 from abc import ABC, abstractmethod
diff --git a/tools/rom_ram_analyzer/standard/__init__.py b/tools/rom_ram_analyzer/standard/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..dba10663d6002d939e496189e557bcbc8d2cc385 100644
--- a/tools/rom_ram_analyzer/standard/__init__.py
+++ b/tools/rom_ram_analyzer/standard/__init__.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is only for indication this folder is a python package.
\ No newline at end of file
diff --git a/tools/rom_ram_analyzer/standard/ram_analyzer.py b/tools/rom_ram_analyzer/standard/ram_analyzer.py
index c3863af14f5b04f55a4e108fd1ad6c445bd097da..a68d77f4a4e5d9957404f0dc3d9d173a0aff9b1e 100644
--- a/tools/rom_ram_analyzer/standard/ram_analyzer.py
+++ b/tools/rom_ram_analyzer/standard/ram_analyzer.py
@@ -1,3 +1,21 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is to implement the rom analyzation of standard device.
+# 
+
 import argparse
 import copy
 import glob
diff --git a/tools/rom_ram_analyzer/standard/rom_analyzer.py b/tools/rom_ram_analyzer/standard/rom_analyzer.py
index 30085ab740e3d02c1e92d273a6a1a8ef71bf94b0..35504fa7879d5fa989c8f6b367d7555da45d44c1 100644
--- a/tools/rom_ram_analyzer/standard/rom_analyzer.py
+++ b/tools/rom_ram_analyzer/standard/rom_analyzer.py
@@ -1,3 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2022 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file contains a RomAnalyzer for rom analyzation of standard device.
+
 import argparse
 import json
 import os