你看过 tfs2svn?

tfs2svn 是一个 Windows 应用程序转换 Team Foundation Server(TFS) 存储库转换为 Subversion(SVN) 存储库，保留历史、分支和提交信息.

tfs2svn is a Windows application that converts a Team Foundation Server (TFS) repository into a Subversion (SVN) repository, preserving the history, branches, and commit information.