The invention relates to a transmission device of stamping equipment specially used for a cosmetic box. The transmission device comprises a first crankshaft and a first gear, wherein the first gear is transmitted by an output shaft of a power device; the first crankshaft and the first gear are matched with each other by a key pin for synchronous transmission; a joint is arranged at the end part of the first crankshaft adjacent to the first gear; the joint is provided with a first bevel gear; a second crankshaft which is vertical to the first crankshaft is arranged at the outer end part (corresponding to one side of the joint) of the first crankshaft; the second crankshaft is provided with a second bevel gear meshed with the first bevel gear; the transmission device also comprises a transmission group formed by matching a plurality of spiral gear steering boxes and couplers; the coupler arranged at the beginning end of the transmission group is matched with the second crankshaft, and the coupler arranged at the tail end of the transmission group is matched with a cam shaft; and the cam shaft is provided with a plurality of cams corresponding to stations of a mould. The transmission device greatly reduces the number of input devices, thus virtually saving a great deal of fund for a consumer.