A die pressing plate including a main body, an adjusting groove, and a main through hole, each of the left or right surface of the main through hole has at least one guiding groove; a lower cushion block having a top curve surface; and an upper cushion block having a lower curve surface for engaging the top curve surface of the lower cushion block, at least one extension portion protruding away from the lower curve surface, the at least one extension portion having two blocking portions, the blocking portions of the at least one extension portion engage the at least one guiding groove, the at least one extension portion extends elastically when the blocking portion slide downwardly, and the blocking portion is blocked by the bottom surface of the main body. The die pressing plate is simple in structure, fast and convenient to assemble and use, and low in cost.