The utility model discloses a plastic film separation of impurities machine, the fixed belt transport gear motor that is provided with on the band conveyer support frame, the activity is provided with conveyor belt in belt transport gear motor's the drive shaft, conveyor belt tiles in band conveyer support frame upper surface, band conveyer support frame both sides frame passes through a plurality of stand and selects separately the support frame to link to each other, it selects the blade to set up a plurality of components on the sorting support frame, select separately the blade through setting up the blade rotary reducing motor drive of selecting separately support frame one side. Through at a plurality of triangular plates of a plurality of epaxial installations, the interval is two centimeters, and when the triangular plate operated, the syntropy was rotated, and each epaxially interlocks the triangular plate with other epaxial triangular plates, and through the shake, impurity filters away, and the plastic film is flaky, can not filtered, because two centimeters interval can not be fallen, direct transmission goes out the plastic film, and impurity is just filtered, its simple structure, and the work efficiency height possesses very big economic value.