The high shear dispersing emulsifier is driven by a compact series-excited micro high-speed motor. It is suitable for stirring and mixing low to medium and high viscosity liquids in laboratories or pilot plants, and for shearing and emulsifying crushed granular materials in liquid media. The machine consists of a high-speed motor, a shearing emulsifying working head and a speed controller. The main drive unit is made of high-quality engineering plastics and die-cast aluminum alloy for a stable operating state; the working head is made of high-quality stainless steel and has a wide range of experimental applications; the speed can be adjusted steplessly to meet the need to modify the operating speed at any time during the experiment. The "H" type digital display speed is intuitive, which provides convenience for experimental data collection; the operation timing control function ensures that the timeliness of the experiment is effectively controllable.