Mouse with permanent magnet roller

The utility model relates to a mouse with a permanent magnet roller. The mouse comprises a mouse, a shaft part, a roller, an inner wheel and a shifting part, the sliding groove is formed in the top of the mouse in a penetrating mode, the rolling wheel is arranged on the shaft portion in a pivoted mode and provided with an inner gear portion, the inner wheel is arranged on the shaft portion in a sliding mode and provided with an outer gear portion corresponding to the inner gear portion, and the rolling wheel and the inner wheel are respectively formed by arranging a plurality of S magnetic poles and a plurality of N magnetic poles in a staggered mode. And the shifting part is connected with the inner wheel and penetrates through the sliding groove. Therefore, the roller can generate the effects of impedance and paragraph feeling through the change of the magnetic pole between the roller and the inner wheel in the rotating process and the change of the distance between the inner gear part and the outer gear pa