diff --git a/rocky-cn.sh b/rocky-cn.sh
new file mode 100644
index 0000000..59f6b2a
--- /dev/null
+++ b/rocky-cn.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+# 定义国内镜像源和官方源
+MIRROR_CHINA="https://mirrors.aliyun.com/rockylinux"
+MIRROR_OFFICIAL="https://dl.rockylinux.org/pub/rocky"
+
+# 提示用户选择源
+echo "请选择 Rocky Linux 的软件源："
+echo "1. 国内镜像（阿里云）"
+echo "2. 官方源"
+read -p "请输入选项编号 (默认: 1): " SOURCE_CHOICE
+SOURCE_CHOICE=${SOURCE_CHOICE:-1}
+
+# 根据用户选择设置源
+if [ "$SOURCE_CHOICE" = "1" ]; then
+    MIRROR_URL="$MIRROR_CHINA"
+    echo "已选择国内镜像源：$MIRROR_URL"
+elif [ "$SOURCE_CHOICE" = "2" ]; then
+    MIRROR_URL="$MIRROR_OFFICIAL"
+    echo "已选择官方源：$MIRROR_URL"
+else
+    echo "无效选项，退出脚本。"
+    exit 1
+fi
+
+# 备份原有的源配置文件
+BACKUP_FILE="/etc/yum.repos.d/Rocky-BaseOS.repo.bak"
+if [ ! -f "$BACKUP_FILE" ]; then
+    sudo cp /etc/yum.repos.d/Rocky-BaseOS.repo "$BACKUP_FILE"
+    echo "已备份原有源配置文件至：$BACKUP_FILE"
+fi
+
+# 替换源为选择的源
+sudo sed -i "s|^mirrorlist=|#mirrorlist=|g" /etc/yum.repos.d/Rocky-*.repo
+sudo sed -i "s|^#baseurl=http://dl.rockylinux.org/\$contentdir|baseurl=$MIRROR_URL|g" /etc/yum.repos.d/Rocky-*.repo
+
+# 清理缓存并更新
+echo "正在清理缓存并更新软件包列表..."
+sudo yum clean all
+sudo yum makecache
+
+echo "软件源已成功修改为：$MIRROR_URL"
+echo "你可以通过以下命令测试是否生效："
+echo "  sudo yum update"
\ No newline at end of file