The beneficiation shaker is mainly composed of eight parts: bed head, motor, slope regulator, bed surface, ore trough, water tank, incoming strip and lubrication system. The longitudinal reciprocating motion of bed surface is realized by crank connecting rod transmission mechanism. The motor of the beneficiation shaker drives the crankshaft to rotate through the belt drive, and the rocker moves up and down. When the rocker moves down, the elbow plate pushes the rear shaft and the reciprocating rod to move backward, and the spring is compressed. The bed surface is connected with the reciprocating rod through the linkage seat.