Abstract Abstract: Dry-type electrochemical polishing (DECP) technology combines the mechanical action of resin particles with the electrochemical action of working solutions to enhance the results of existing treatments. Homogeneous polishing across the entire surface of the piece is the main advantage compared to mechanical polishing. This article utilizes this method to polish the surface of 304 stainless steel, resulting in a metal surface roughness (Ra) in the range of 1.23m to 98nm. This innovation expands the potential applications of 304 stainless steel in the medical and food industries. Energy dispersive X-ray spectroscopy (EDS) analysis cannot detect residual electrolyte components, and resin particles containing liquid electrolytes can effectively avoid the harmful substanc remain on the metal surface. Electrochemical analysis of polished sample shows that the Ecorr was -0.109V for DECP specific sample compared with -0.291V for initial sample, and the polishing process can be seen as the generation and removal of corrosion products.