diff --git a/README.md b/README.md
index a5d1738ad57de09c18d273b7fd6a7d1c47739943..ef4b805856c5c72aa1db631c44ee240ff6ac91a8 100644
--- a/README.md
+++ b/README.md
@@ -24,19 +24,29 @@ aarch32-rootfs-builder 通过一组工具和补丁实现 openEuler rootfs 相关
 │           └── 0001-add-arm32-support.patch
 ├── tools
 │   ├── auto_build_pkgs.sh
+│   ├── auto_make_rootfs.sh
 │   └── rpmmacros_openeuler
-└── src
-    └── base-files
+├── src
+│   └── base-files
+├── documents
+│   └── mock_env_build.md
+└── assets
+    └── aarch32-roadmap.png
 ```
-- conf/aarch32_support_list.yaml 
+- [conf/aarch32_support_list.yaml](conf/aarch32_support_list.yaml)
   - 维护当前支持的 rpm 列表
 - patches/*/\* 
   - 存放 rpm 包的 aarch32 支持补丁
 - tools/*
-  - auto_build_pkgs.sh  自动化编译工具
-  - rpmmacros_openeuler 编译所需的 macros 文件
+  - [auto_build_pkgs.sh](tools/auto_build_pkgs.sh)  自动化编译工具
+  - [auto_make_rootfs.sh](tools/auto_make_rootfs.sh) 自动化创建arm32 rootfs工具
+  - [rpmmacros_openeuler](tools/rpmmacros_openeuler) 编译所需的 macros 文件
 - src/*/\* 
   - 存放openEuler暂未支持的软件包(TODO：后期会推入openEuler主仓)
+- documents/*
+  - [mock_env_build.md](documents/mock_env_build.md)  mock编译环境构建指南
+- assets/*
+  - [aarch32-roadmap.png](assets/aarch32-roadmap.png)  路标图片
 
 #### 路标
 ![aarch32-roadmap](./assets/aarch32-roadmap.png)
diff --git a/documents/mock_env_build.md b/documents/mock_env_build.md
new file mode 100644
index 0000000000000000000000000000000000000000..75c21f76e4e78fb3d3b787e2f9ce03332108b694
--- /dev/null
+++ b/documents/mock_env_build.md
@@ -0,0 +1,85 @@
+# mock编译环境构建指南
+
+## 编译环境os信息
+编译环境使用的是feodra29 x86_64
+```
+# cat /etc/fedora-release
+Fedora release 29 (Twenty Nine)
+# uname -r
+4.18.16-300.fc29.x86_64
+```
+
+## mock安装
+确保fedora源配置正确
+yum源参考：
+```
+[fedora]
+name=Fedora $releasever - $basearch
+failovermethod=priority
+metalink=https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=$basearch
+enabled=1
+metadata_expire=7d
+repo_gpgcheck=0
+type=rpm
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+skip_if_unavailable=False
+
+[fedora-modular]
+name=Fedora Modular $releasever - $basearch
+failovermethod=priority
+metalink=https://mirrors.fedoraproject.org/metalink?repo=fedora-modular-$releasever&arch=$basearch
+enabled=1
+repo_gpgcheck=0
+type=rpm
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+skip_if_unavailable=False
+
+[updates]
+name=Fedora $releasever - $basearch - Updates
+failovermethod=priority
+metalink=https://mirrors.fedoraproject.org/metalink?repo=updates-released-f$releasever&arch=$basearch
+enabled=1
+repo_gpgcheck=0
+type=rpm
+gpgcheck=1
+metadata_expire=6h
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+skip_if_unavailable=False
+
+[updates-modular]
+name=Fedora Modular $releasever - $basearch - Updates
+failovermethod=priority
+metalink=https://mirrors.fedoraproject.org/metalink?repo=updates-released-modular-f$releasever&arch=$basearch
+enabled=1
+repo_gpgcheck=0
+type=rpm
+gpgcheck=1
+metadata_expire=6h
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+skip_if_unavailable=False
+
+[updates-source]
+name=Fedora $releasever - Updates Source
+failovermethod=priority
+metalink=https://mirrors.fedoraproject.org/metalink?repo=updates-released-source-f$releasever&arch=$basearch
+enabled=1
+repo_gpgcheck=0
+type=rpm
+gpgcheck=1
+metadata_expire=6h
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch
+skip_if_unavailable=False
+```
+mock使用update源中的版本
+```
+# yum install -y qemu-user-static mock
+```
+
+## aarch32 rootfs初始化
+```
+# mock -r fedora-29-armhfp init
+```
+初始化构建出的fedora 29 aarch32位的rootfs在这里：
+/var/lib/mock/fedora-29-armv7hl/root