Aiming at the technical problems on machining the large-scale thin-walled revolved parts,a simple structure,high-efficient and precision bridge-type 5-axes turning milling machining center is provided and its structure,features,machining process and so on are discussed in details.The research of this machining center solve the problem of high-speed turning and milling machining of revolved parts.Especially,it solves the problem of high-speed turning and milling machining of revolved parts with the rectangular grid structure in inner surface.It can realize mostly holistic high-speed precision machining of complex surfaces of revolved parts in a single setup.