The utility model relates to a plastic film residue picking machine which comprises a frame, side plates arranged on two sides of the frame and a top plate arranged on the upper portions of the side plates, suspension brackets are symmetrically arranged on the upper portions of the front ends of the side plates, and a power output mechanism is mounted in the middle of each suspension bracket. Traveling wheels are mounted at the bottom of the rear end of the frame; inclined soil lifting plates are connected to the corresponding positions, close to the front ends, of the side plates through connecting shafts, and oil cylinders are connected to the bottoms of the left and right ends of the soil lifting plates; a soil-film separating and conveying mechanism is arranged behind the upper end part of the soil lifting plate and is connected with an air blower and a film winding device through a belt; triangular supporting frames are fixed to the two sides of the rear portion of the frame, a film collecting box is hinged to the upper ends of the triangular supporting frames, and an opening corresponding to the film winding device is formed in the front end face of the film collecting box. Oil cylinders are respectively fixed on the bevel edges of the triangular support frames, and the tail ends of the oil cylinders are connected to box bodies on two sides of the film collecting box. Thepicking device is clean in picking, beneficial to recycling, rapid in film removal and convenient to use.