With the development of additive manufacturing (AM) technology, a variety of AM technologies, such as arc, laser and electron beam AM technologies, have been extensively researched in their respective sectors. The characteristics of electron beam freeform fabrication (EBF3
) were summarized in this paper. The research on EBF3
technology and the latest achievements on the equipment and technique of EBF3
in domestic and foreign were introduced. Research work of EBF3
which should be launched was analyzed. Finally, EBF3
technology should be developed along refractory metals and composite materials, preparation of gradient materials and complex component additive manufacturing was prospected.