The upper and lower emulsifying mixer combines efficient mixing and fine emulsifying functions. Its unique design of upper and lower dual stirring structures allows the upper stirring component to realize overall turning and macro-mixing of materials, while the lower high-shear emulsifying head generates strong shearing force through high-speed rotation, refining and emulsifying materials to the micron level, ensuring uniform dispersion and stable particle size distribution. During operation, the upper and lower parts work in coordination, which not only avoids the retention of local materials but also improves emulsifying efficiency. It is suitable for processing complex materials such as pastes, emulsions, and suspensions. With easy operation, it can adjust the rotation speed and stirring time according to process requirements, and is widely used in cosmetics, food, pharmaceutical and other fields with strict requirements on emulsifying effects.