For detailed information in Chinese, visit here. 中文介绍请看这里。
Add repo:
[archlinuxcn]
Server = https://repo.archlinuxcn.org/$arch
to your /etc/pacman.conf .
For mirrors (strongly recommended for users in China), see https://github.com/archlinuxcn/mirrorlist-repo.
Import PGP Keys:
sudo pacman -Sy && sudo pacman -S archlinuxcn-keyring