默认Homebrew的源会应用Github，国内应用会很慢。能够通过更改为国内的源，进步访问速度。

Step 1 先重置一下(原理就是重置一下brew.git和homebrew-core.git)

# 诊断Homebrew$ brew doctor# 重置brew.git$ cd "$(brew --repo)"$ git fetch$ git reset --hard origin/master# 重置homebrew-core.git$ cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"$ git fetch$ git reset --hard origin/master# 更新$ brew update

Step 2 应用国内的源

# 替换brew.git:$ cd "$(brew --repo)"# 中国科大:$ git remote set-url origin https://mirrors.ustc.edu.cn/brew.git# 清华大学:$ git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git# 替换homebrew-core.git:$ cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"# 中国科大:$ git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git# 清华大学:$ git remote set-url origin https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git# 替换homebrew-bottles:# 中国科大:$ echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profile$ source ~/.bash_profile# 清华大学:$ echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles' >> ~/.bash_profile$ source ~/.bash_profile# 更新$ brew update

Step 3清理旧的安装包

$ brew cleanup

如果想换回官网源应用如下命令

$ cd "$(brew --repo)"$ git remote set-url origin https://github.com/Homebrew/brew.git$ cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"$ git remote set-url origin https://github.com/Homebrew/homebrew-core.git