diff --git a/system_init/updata_source_debian12.sh b/system_init/updata_source_debian12.sh
new file mode 100644
index 0000000..627b6ed
--- /dev/null
+++ b/system_init/updata_source_debian12.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# 备份原始 sources.list 文件
+cp /etc/apt/sources.list /etc/apt/sources.list.bak
+
+# 覆盖写入新的 sources.list 内容
+cat > /etc/apt/sources.list << EOF
+deb https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
+deb-src https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
+deb https://mirrors.aliyun.com/debian-security/ bookworm-security main
+deb-src https://mirrors.aliyun.com/debian-security/ bookworm-security main
+deb https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
+deb-src https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
+deb https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib
+deb-src https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib
+EOF
+
+# 输出提示信息
+echo "sources.list 已更新，备份文件为 /etc/apt/sources.list.bak"
\ No newline at end of file