Abstract: In this paper using electrochemical method the coatings ofFe-Cr-Ni alloy was prepared. The effect of electrodeposition conditions on forming coatings of 304 stainless steel was discussed. The results indicated that when the content of Cr³⁺ and Ni²⁺ in the bath is to a certain ratio, a Fe-Cr-Ni alloy coatings corresponding to the composition 304 stainless steel (18Cr/9Ni) can be obtained at normal atmospheric temperature, lower pH values and proper current.