The invention discloses a full-automatic egg puff making device which comprises a top plate, baking tray turnover mechanisms are arranged on the front side and the rear side of one side of the top of the top plate, a liquid outlet device is fixedly connected to the front face of the middle of the top of the top plate, a robot is fixedly connected to the position, located behind the liquid outlet device, of the top of the top plate, and the invention relates to the technical field of the automatic selling and buying industry. According to the full-automatic egg puff making device, the baking tray overturning mechanisms are arranged on the front portion and the rear portion of one side of the top of the top plate, the egg puff is baked through the baking tray overturning mechanisms, the egg puff can be evenly heated, the processing quality of the egg puff is improved, the whole making process of the egg puff can be fully automatically completed without manual participation, efficiency is obviously improved, the production cost and sanitary requirements of customers are greatly reduced, unmanned full-automatic production can be realized, the main equipment not only improves the production efficiency, but also can be in a sales state for 24 hours, and the manpower production cost is reduced through automatic production.