The present invention provides a novel conicity ball mill, which comprises a cutter handle, a cutter rod and a cutting blade, wherein the cutter handle, the cutter rod and the cutting blade are positioned at the same axis, the cutter handle is arranged on one end of the cutter rod, the cutting blade is arranged on the other end of the cutter rod and is a cone, the conicity of the cutting blade is 5-10 DEG, the cutter handle is a cylinder, the diameter of the cutter handle is 6 mm, the cutter rod is a prism matched with the cutting blade, and the total length of the cutter handle, the cutter rod and the cutting blade is 60-100 mm. Compared to the mill in the prior art, the mill of the present invention has the following characteristics that the shape of the whole conicity ball mill is changed, the combination of the cone, the prism and the cylinder is used, the embossing is performed by using the cone, and the good cutting effect can be obtained by adjusting the angle of the cutting blade to 5-10 DEG; and the diameter of the cutter handle of the conicity ball mill is fixed, the cutter body length is changed, the manufacturing is performed according to the requirement, the conicity ball mills having different lengths are convent to change, and the practicality is strong.