Ubuntu 换国内源：20.04、22.04、24.04 APT 配置

换源步骤

备份原配置​​（防止误操作）：

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak  # 20.04/22.04
sudo cp /etc/apt/sources.list.d/ubuntu.sources /etc/apt/sources.list.d/ubuntu.sources.bak  # 24.04

替换 /etc/apt/source.list 内容为国内源（根据自己的系统版本来）

Ubuntu20.04源

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

腾讯云

deb http://mirrors.cloud.tencent.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse

Ubuntu22.04源

阿里源：

deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse

腾讯云

deb http://mirrors.cloud.tencent.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-updates main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.cloud.tencent.com/ubuntu/ jammy-backports main restricted universe multiverse

Ubuntu 24.04 源

⚠️ ​​注意​​：24.04 改用结构化配置文件 ubuntu.sources，非传统 sources.list
阿里源：

# /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: https://mirrors.aliyun.com/ubuntu/
Suites: noble noble-security noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

腾讯云

# /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: http://mirrors.cloud.tencent.com/ubuntu/
Suites: noble noble-security noble-updates
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

最后执行 更新即可

sudo apt update

历史说明：本文保留原始发布内容，内容整理日期为 2026-08-05。文中版本、下载链接和第三方服务可能已发生变化；操作前请以软件官方文档、授权条款和当前运行环境为准。

适用范围

本文适用于仍使用传统 sources.list 的 Ubuntu 20.04、22.04，以及使用 ubuntu.sources 的 Ubuntu 24.04。操作前请通过 cat /etc/os-release 确认发行版代号，避免将其他版本的软件源写入当前系统。

验证与回滚

修改后执行 sudo apt update，确认没有签名、重复源或 404 报错；再按需执行 apt list --upgradable。若更新失败，使用开头创建的备份文件恢复原配置后再次执行更新。

历史配置提示

镜像站策略会随时间调整。本文保留为历史配置示例，生产服务器应优先使用镜像站当前公布的地址和官方 Ubuntu 文档。