The utility model discloses an abrasion tester of a friction plate. The abrasion tester is characterized in that two cylindrical sample clamps are arranged between a horizontal top plate and a supporting base and are symmetrically arranged in an upper-down manner, the opposite end surface centers of the two sample clamps are respectively provided with a sample installing groove, and the upper sample clamp can vertically move in the upper-down manner; the lower end of the lower sample clamp is fixed on the supporting base, the upper sample clamp is provided with a first spoke type sensor, and a movable rectangular friction plate is horizontally arranged between the two sample clamps; one side of the friction plate is horizontally provided with a push-pull rod, an end part of one end of the push-pull rod is fixedly provided with a sliding block, the sliding block is arranged on the groove, and the other end of the push-pull rod and a second spoke type sensor are locked into a whole through a bolt; a horizontal actuator is fixed on the supporting base arranged on the outer side of a stand column, and an output piston rod of the horizontal actuator is provided with the second spoke type sensor. The abrasion tester provided by the utility model has the advantages that the structure is simple and compact, the production and acquisition costs are low, and the abrasion tester can be widely applied to experiments for testing initial static friction force and sliding friction force, abrasion property, mechanical property and period fatigue property.