The present invention relates to the field of ball mills, in particular to a ball mill, comprising a horizontally arranged support installation plate, a rotating installation cylinder is arranged horizontally above the support installation plate, a support installation frame is vertically arranged at the upper left end of the support installation plate, and the support installation frame The upper end is provided with a supporting swing frame through the rotating shaft, and the upper end of the supporting swing frame is horizontally provided with a limit rotation sleeve, and the middle position of the left end of the rotation installation cylinder cooperates with the limit rotation sleeve to set a limit rotation column, and the left end of the rotation installation cylinder cooperates with the limit rotation The column is symmetrically equipped with a rotating gate. Through the guide displacement transmission structure, the device can maintain axial shaking during the ball milling operation, improving the efficiency and quality of the ball mill. Through pneumatic control, the ups and downs during the rotation process can be realized, and the quality of the ball mill can be further improved. and efficiency, while reducing the noise during the ball milling process, significantly improving the practical experience of the ball milling device, and suitable for large-scale promotion and use.