The utility model discloses an electric washing polishing device, which comprises a hanging basket, a feeding section, a plurality of electro-polishing baths, a wash tank, a transporter, a discharging section, a chemical feed device, a plurality of water pipes and a plurality of electric pumps, wherein the chemical feed device comprises a chemical feed cylinder which is connected with the water channels of the electro-polishing baths, and the feeding section, the electro-polishing baths, the wash bath and the discharging section are arrayed in a straight line in turn, the transporter is hung on the upper portions of the feeding section, electro-polishing baths, the wash bath and the discharging section, the hanging basket is arranged on the feeding section in turn, and is transferred by the transporter to the electro-polishing baths, the wash bath and the discharging section in turn, and the hanging basket is mechanically and electrically connected with the anode switch-in plates of the electro-polishing baths in the electro-polishing baths. The utility model is organically integrated by the feeding section, the electro-polishing baths, the wash bath, the discharging section, the chemical feed device and the transporter, adopts the automation control for the complete polishing and washing process, greatly saves labor force, reduces production cost, increases processing efficiency, and guarantees the safety of operating staff.