The laboratory high-speed dispersing homogenizer is driven by a compact series-excited miniature high-speed motor, which is suitable for the laboratory to further disperse and homogenize the crushed experimental materials in the liquid medium. The machine is composed of a high-density die-casting aluminum alloy as the main engine of the body, a dispersed and homogeneous working head made of high-quality stainless steel and a speed-adjusting base. It has the characteristics of high host drive speed, high output power, convenient work head loading and unloading, and simple experimental operation.