This paper describes a mixing device for mixing gel, including a mixer body. The inside of the mixer body is a closed chamber, and the bottom of the mixing chamber is equipped with a mixing bracket. The bottom of the mixer is connected with a motor through a transmission structure. This mixer, with PLC program parameters, can adjust the speed, time, vacuum degree, and the ratio of revolution to rotation of the mixing bracket. Therefore, the gradual mixing and defoaming of gel can be achieved under different formulations. Compared with traditional technology, it has low energy consumption and high mixing efficiency.