The utility model discloses a tire inner wall polisher, including tire runner assembly and griding assembly, the tire runner assembly includes motor and carousel, and the motor is connected with the carousel, and griding assembly includes the stand and install the ball screw on the stand, and ball screw is connected with the head of polishing, and the first end fixing of polishing is equipped with the ball, and the ball is hemispherical shape, has seted up a plurality of chip removal holes on the ball, and the first pipeline that passes through of polishing is connected with the air jet system. Polish the head when polishing to the tire inner wall, the air jet system is through overhead jet -propelledly empty spout to the tire inner wall of polishing, and fines on the tire inner wall that blows off keeps cleaner production.