The hot stamping machine with gold foil tensioning mechanism includes servo motor, knurling roller and gold receiving roller. The servo motor is connected with the knurling roller according to the timing belt and the timing belt wheel, and receives the gold roller according to the large sprocket, the chain and the one-way sprocket wheel. . The utility model is characterized in that a gold foil tightening mechanism is installed on the collecting shaft, which consists of a one-way sprocket, a chain, a sprocket and an adjusting motor. This hot stamping machine with a gold foil tensioning mechanism solves the problem of easy loosing of the gold foil foil stamping machine, ensures the accuracy of hot stamping and overprinting, and improves the working quality of the hot stamping machine. (Packaging World)