diff --git a/anolis-courses/anolis_install_DDE/index.yaml b/anolis-courses/anolis_install_DDE/index.yaml
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+++ b/anolis-courses/anolis_install_DDE/index.yaml
@@ -0,0 +1,20 @@
+name: Anolis 8.4 安装 DDE 桌面环境
+desc: 本课程将介绍如何通过软件仓库配置实现在Anolis8.4操作系统中安装体验DDE桌面环境。
+image: "Anolis 8.4 64位"
+live_time: "60 min"   
+machine: x86_64-2c4g   # cpu架构-机器规格，该字段为空，默认 x86_64-2c4g
+max_clients: 5   # 最大并发使用数，不填则默认不限制
+details:
+  steps:
+    start: start.md
+    finish: finish.md
+    - name: 配置软件源
+      content: step1.md
+    - name: 安装dde
+      content: step2.md
+    - name: 进行桌面管理器设置
+      content: step3.md
+    - name: 重启进入DDE环境
+      content: step4.md
+    - name: 验证迁移结果
+      content: step5.md
diff --git a/anolis-courses/anolis_install_DDE/start.md b/anolis-courses/anolis_install_DDE/start.md
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+本场景将提供一台配置了 AnolisOS 8.4 操作系统的服务器作为实验环境,通过进行环境配置以及软件包安装，可以在Anolis系统环境中体验DDE桌面环境。
diff --git a/anolis-courses/anolis_install_DDE/step1.md b/anolis-courses/anolis_install_DDE/step1.md
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index 0000000000000000000000000000000000000000..003f75082c1ffa3bd0d64f186423e7d432b402a1
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+++ b/anolis-courses/anolis_install_DDE/step1.md
@@ -0,0 +1,30 @@
+说明：CentOS 8操作系统版本结束了生命周期（EOL），Linux社区已不再维护该操作系统版本。建议您切换到Anolis或Alinux。如果您的业务过渡期仍需要使用CentOS 8系统中的一些安装包，请根据下文切换CentOS 8的源。
+
+1. 安装软件仓库配置工具。
+
+[[ sudo yum install yum-utils ]]
+
+2. 开启DDE软件仓库。
+
+[[ sudo yum-config-manager --enable DDE ]]
+
+3. 修改系统软件仓库配置中的仓库地址。
+
+[[ sed -i "s/\$releasever/8\.4/g" \`find /etc/yum.repos.d/ -name *.repo ]]
+
+4. 修改Anolis-DDE.repo文件内容。
+
+[[ 
+ [DDE]
+ name=AnolisOS-8.4 - DDE
+ baseurl=http://mirrors.openanolis.cn/anolis/8.4/DDE/$basearch/os
+ enabled=1
+ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ANOLIS
+ gpgcheck=1
+ [epel]
+ name=epel
+ baseurl=https://archives.fedoraproject.org/pub/archive/epel/8.3.2021-05-20/Everything/$basearch/
+ enabled=1
+ gpgkey=http://mirrors.aliyun.com/epel/RPM-GPG-KEY-EPEL-8
+ gpgcheck=0
+ ]]
diff --git a/anolis-courses/anolis_install_DDE/step2.md b/anolis-courses/anolis_install_DDE/step2.md
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index 0000000000000000000000000000000000000000..2a668d0a6dbaaf05879bce6a483aaa3c1cf1939d
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+++ b/anolis-courses/anolis_install_DDE/step2.md
@@ -0,0 +1,7 @@
+1. 清除系统软件包缓存。
+
+[[ sudo yum clean all && yum makecache ]]
+
+2. DDE软件包安装。
+[[ sudo yum groupinstall dde ]] 
+
diff --git a/anolis-courses/anolis_install_DDE/step3.md b/anolis-courses/anolis_install_DDE/step3.md
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index 0000000000000000000000000000000000000000..9ce920fc980307a83aed83c75202f9c9456f9a96
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+++ b/anolis-courses/anolis_install_DDE/step3.md
@@ -0,0 +1,6 @@
+1. 软件包安装完成后进行系统窗口管理器设置。
+
+[[ sudo systemctl disable gdm ]]
+
+[[ sudo systemctl enable lightdm ]]
+
diff --git a/anolis-courses/anolis_install_DDE/step4.md b/anolis-courses/anolis_install_DDE/step4.md
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index 0000000000000000000000000000000000000000..5336c677578256a1b8bd4acfc5a5988efea28d0d
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+++ b/anolis-courses/anolis_install_DDE/step4.md
@@ -0,0 +1,6 @@
+1. 设置成功，重启即可进入Anolis OS系统 DDE桌面环境。
+
+[[ reboot ]]
+
+2. 重新连接并进入系统。
+