The invention discloses an electric clamping mechanism for auto parts, which comprises a supporting beam, a right supporting side plate, a left supporting side plate, a lead screw, a left splint, a right splint, a left slider and a right slider, the two ends of the supporting beam are under the A right support side plate and a left support side plate are respectively fixed and welded, and a lead screw is provided on the rotatable frame between the right support side plate and the left support side plate, and the left outer ring surface of the lead screw and the right outer ring surface of the lead screw are both Processed with external threads, the left slider is rotated and set on the left outer ring of the lead screw through threaded connection, the right slider is rotated and set on the right outer ring of the lead screw through threaded connection, and the left splint is passed through a lower connecting rod The fixed mount is arranged on the bottom end of the left slider, and the right splint is fixedly installed on the bottom end of the right slider through another lower connecting rod. The invention has the advantages of simple structure, convenient operation, high clamping efficiency and stability, and is suitable for popularization and use.