http://blog.csdn.net/qq_16885135/article/details/52777871
使用 git branch -a 命令可以查http://blog.csdn.net/qq_16885135/article/details/52777871看所有本地分支和遠程分支（git branch -r 可以只查看遠程分支）
發現很多在遠程倉庫已經刪除的分支在本地依然可以看到。
$ git branch -a movtop task_develop * weibo remotes/origin/HEAD -> origin/task_develop remotes/origin/develop remotes/origin/fix_composer_repositories_type remotes/origin/join_weixin_module remotes/origin/master remotes/origin/mining-backup remotes/origin/movtop remotes/origin/right remotes/origin/schedule_dev remotes/origin/stuff_web_fix remotes/origin/task_develop remotes/origin/task_idea remotes/origin/task_temp remotes/origin/task_yqj remotes/origin/weibo remotes/origin/weixin_temp
使用命令 git remote show origin，可以查看remote地址，遠程分支，還有本地分支與之相對應關系等信息。
$ git remote show origin * remote origin Fetch URL: https://xxx@gitlab.com/xxx/xxx.git Push URL: https://xxx@gitlab.com/xxx/xxx.git HEAD branch: task_develop Remote branches: master tracked mining-backup tracked refs/remotes/origin/develop stale (use 'git remote prune' to remove) refs/remotes/origin/fix_composer_repositories_type stale (use 'git remote prune' to remove) refs/remotes/origin/join_weixin_module stale (use 'git remote prune' to remove) refs/remotes/origin/movtop stale (use 'git remote prune' to remove) refs/remotes/origin/right stale (use 'git remote prune' to remove) refs/remotes/origin/schedule_dev stale (use 'git remote prune' to remove) refs/remotes/origin/stuff_web_fix stale (use 'git remote prune' to remove) refs/remotes/origin/task_temp stale (use 'git remote prune' to remove) refs/remotes/origin/weibo stale (use 'git remote prune' to remove) task_develop tracked task_idea tracked task_yqj tracked weixin_temp tracked Local branches configured for 'git pull': movtop merges with remote movtop task_develop merges with remote task_develop weibo merges with remote weibo Local ref configured for 'git push': task_develop pushes to task_develop (up to date)
此時我們可以看到那些遠程倉庫已經不存在的分支，根據提示，使用 git remote prune origin 命令：
$ git remote prune origin Pruning origin URL: https://xxx@gitlab.com/xxx/xxx.git * [pruned] origin/develop * [pruned] origin/fix_composer_repositories_type * [pruned] origin/join_weixin_module * [pruned] origin/movtop * [pruned] origin/right * [pruned] origin/schedule_dev * [pruned] origin/stuff_web_fix * [pruned] origin/task_temp * [pruned] origin/weibo
這樣就刪除了那些遠程倉庫不存在的分支。