The invention discloses a grinder used for button battery production and belongs to the field of button battery production. The grinder comprises a bottom plate, a left frame, a right frame, a top plate, a linkage part, a placing platform, a grinding frame and a motor. A first sliding rail is arranged at the top of the bottom plate. The placing platform is connected to a first sliding block. The grinding frame is placed on the placing platform. The motor is fixedly connected to the left side of the bottom of the top plate and connected with the linkage part. The two ends of the linkage part are connected with the front end and the back end of the placing platform. A second sliding rail is fixed to the right side of the bottom of the top plate. A second sliding block is slidably connected to the second sliding rail. An electric push rod is connected to the second sliding block. A grinding barrel is connected to the bottom end of the electric push rod and located above the grinding frame. A drawing box is arranged in the grinding frame. A supporting plate is arranged at the top end of the drawing box. Sliding rails are arranged on the two sides of the supporting plate and fixed to the inner side surface of the grinding frame. The two ends of the supporting plate are fixed in the sliding rails and connected with the motor. The supporting plate moves in the sliding rails. The grinder used for button battery production has the advantages of being good in grinding effect, high in working efficiency and simple in structure.