The invention relates to a punching composite die for a filter element end cover. The punching composite die comprises a guide column, an upper die base plate of a guide sleeve, a lower die base plate of the guide sleeve and a compositing device. The compositing device is mounted between the upper die base plate and the lower die base plate and comprises an upper die fixing plate, a punching male die fixing plate, a punching male die, a flanging male die, a guide pin, a pressing ring, a blanking female die fixing plate, a blanking female die, a flat-wire spiral spring, a guide post, a die shank, a lower die fixing plate, a punching female die, a punching female die fixing plate, a lower forming core, a punch-die, a circular wire spiral spring, a pressing plate, an ejector pin and an ejector plate. By the technical scheme, during a stroke of a punching machine, all punching procedures for forming the filter element end cover with a protrusion at the center, production efficiency can be increased, production cost can be lowered, and appearance quality and dimensional precision of products are guaranteed.