当只调用git tag <TAGNAME>而没有任何附加参数时，git将从你当前的HEAD(即你当前分支的HEAD)创建一个新标签。当向这个分支添加额外的提交时，分支HEAD将跟上这些新的提交，而标记总是引用相同的提交。

当调用git标签<TAGNAME> <COMMIT>时，你甚至可以指定使用哪个提交来创建标签。

无论如何，标记仍然只是指向某个提交(而不是分支)的“指针”。

标记和分支是完全不相关的，因为标记引用的是特定的提交，而分支是对历史记录的最后一次提交的移动引用。树枝走了，标签留了。

所以当你标记一个提交时，git并不关心哪个提交或分支被签出，只要你向他提供你想要标记的内容的SHA1。

我甚至可以通过引用一个分支来标记(然后它会标记分支的尖端)，然后说分支的尖端在其他地方(git重置——例如很难)，或者删除分支。但是我创建的标签不会移动。

如果你想标记你所在的分支，那么输入:

git tag <tag>

用:

git push origin --tags

CharlesB的回答和helmbert的回答都很有用，但我花了一些时间来理解它们。 这是另一种表达方式:

A tag is a pointer to a commit, and commits exist independently of branches. It is important to understand that tags have no direct relationship with branches - they only ever identify a commit. That commit can be pointed to from any number of branches - i.e., it can be part of the history of any number of branches - including none. Therefore, running git show <tag> to see a tag's details contains no reference to any branches, only the ID of the commit that the tag points to. (Commit IDs (a.k.a. object names or SHA-1 IDs) are 40-character strings composed of hex. digits that are hashes over the contents of a commit; e.g.: 6f6b5997506d48fc6267b0b60c3f0261b6afe7a2)

Branches come into play only indirectly: At the time of creating a tag, by implying the commit that the tag will point to: Not specifying a target for a tag defaults to the current branch's most recent commit (a.k.a. HEAD); e.g.: git tag v0.1.0 # tags HEAD of *current* branch Specifying a branch name as the tag target defaults to that branch's most recent commit; e.g.: git tag v0.1.0 develop # tags HEAD of 'develop' branch (As others have noted, you can also specify a commit ID explicitly as the tag's target.) When using git describe to describe the current branch: git describe [--tags] describes the current branch in terms of the commits since the most recent [possibly lightweight] tag in this branch's history. Thus, the tag referenced by git describe may NOT reflect the most recently created tag overall.

如果你想从一个分支创建一个标签，比如release/yourbranch等 那么你应该使用

git tag YOUR_TAG_VERSION_OR_NAME origin/release/yourbranch

创建正确的标签后，如果您希望将标签推到远程，请使用该命令

git push origin YOUR_TAG_VERSION_OR_NAME

一个相关且有用的命令是

git branch --contains tag/<tag>

这将为您提供所有分支的标签上的列表

这里有更多细节…