Abstract: In order to deal with the finishing problems of complex profile metal parts, a new kind of electrochemical mechanical finishing (ECMF) method using high-speed abrasive flow is proposed. By means of electrochemical dissolution and tiny abrasive particles' continuous micro scratch, the surface quality of workpiece is improved. In this study, the finishing principles is discussed. Meanwhile, the effect of hybrid fishing, pure electrochemical machining and pure high-speed abrasive machining under the same condition is analyzed through comparative experiments. The single-factor method is used to test the influence of different factors on surface roughness of stainless steel workpiece. The results show that the hybrid finishing process can effectively improve the machining efficiency, reduce the surface roughness, and achieve better processing results and a smooth surface, which has a R_a of 0.17 μm obtained in 5 min.