A structure of the disc bike is provided, which recovers imperfect dislocation of a joint of backbone and recovers of the spinal motion function. A structure of the disc bike comprises: a cycle(50) in which a pedal(58) is mounted on the upper rotary wheel; a supporting board(10) mounted on the top of the lower support stand; a mat(20) mounted on the top of the supporting board; a plurality of rollers for the pedal distance control mounted between the supporting board and mat; an exercise handle(30) mounted on both sides of the mat supporting board; a vest(40) adhered on the top of mat; a pelvis pulling belt(42) adhered on the top of mat; an upper belt(44) adhered on the top of vest; a lower belt(46) adhered to the lower part of the vest; and a tilting device.
