The invention discloses a machining and cutting mode for a loudspeaker membrane with a metal ring and a special tool thereof. The machining and cutting mode comprises the step of precutting the metalring membrane; the precutting of the metal ring membrane comprises the steps of a, setting the metal ring in the periphery of the membrane to form the metal ring membrane; and b, after the metal ringmembrane is formed, precutting the membrane. Compared with the prior art, the machining and cutting mode for the loudspeaker membrane with the metal ring and the special tool thereof provided by the invention can improve the positioning accuracy of the loudspeaker body; the problem appearing during the assembly of the loudspeaker and the module due to the fact that the cut membrane exceeds the appearance of a product is avoided; the problem that the membrane exceeds does not exists at the matching position of the loudspeaker and the module is avoided, the problem of poor assembly caused by theloudspeaker membrane laser cutting eraser reservation problem can be solved, and the yield of the production line can be improved.