The invention belongs to the technical field of tailoring equipment and particularly provides a trade mark folding device. The trade mark folding device comprises a power source installing base fixedly arranged on the bottom plane of an installing base. A power source is arranged on the power source installing base. A swing shaft is connected to the power source installing base in a rotating manner. The swing shaft is provided with a swing base. A pressing plate is arranged on the swing base. The pressing plate is arranged in the vertical direction. An eccentric wheel is arranged on a rotatingshaft of the power source. The swing base is provided with a hole with the axis parallel to the rotating shaft of the power source. The eccentric wheel is arranged in the hole. The power source drives the eccentric wheel to rotate and then drives the swing base to move along the swing shaft and rotate along with the swing shaft, thus upper and lower moving of the pressing plate can be achieved, the pressing plate is provided with a window for trade marks to pass, and the swing base is provided with a blowing mechanism. The trade mark folding device folds the trade marks through the blowing manner, the structure is compact, the folding effect is good, the efficiency is high, few parts are used, and design and layout of the complete machine are benefitted.