The invention discloses clutch friction plate flatness testing equipment and a using method thereof. The clutch friction plate flatness testing equipment comprises an upper structure and a lower structure. The upper structure comprises an air cylinder support, an air cylinder, a linear bearing, a tested friction plate, a spline seat, a precise sensor support, a fluted disc, a magnetoelectric sensor and an operating console. The lower structure comprises a belt pulley upper end bearing, a control box, a main shaft, a main bearing, a belt pulley III, a triangular belt II, a belt pulley shaft, a belt pulley II, a belt pulley I, a triangular belt I, a motor supporting plate, a belt pulley lower end bearing, motor fixing bolts, a gearbox, an alternating-current motor, a lower support and a frequency converter. A main transmission system, a friction plate bearing mechanism and a precise probe fixture are arranged in the upper structure and the lower structure. The clutch friction plate flatness testing equipment has the characteristics of higher rapidness and simplicity in installation, high automation level, convenience in testing operation and the like, and can better guarantee the accuracy of clutch friction plate flatness testing.