The invention discloses an efficient crushing device for soybean processing. The device comprises a crushing box; a driving shaft and a driven shaft are horizontally and rotationally arranged in the crushing box; a rotating motor is fixedly mounted on the outer wall of the left side of the crushing box through a bracket; an output shaft of the rotating motor is connected with the driving shaft; first crushing blades are uniformly arranged on the surface of the first crushing roller; multiple second crushing blades are uniformly arranged on the surface of the second crushing roller; poking plates are respectively arranged between the adjacent second crushing blades; a dispersion net plate is horizontally arranged in the crushing box, and extends to the right side to reach the external of the crushing box; a cam is arranged on the driving shaft; and the cam butts against the lower surface of the dispersion net plate. The device uses the first crushing roller and the second crushing roller for united crushing; and the cam is rotated to drive vibration of the dispersion net plate, so that soybeans on the dispersion net plate can uniformly fall down from meshes of the dispersion net plate, excessive falling concentration of the soybeans is prevented, and the crushing effect is improved.