Abstract: With the increasing output of open-pit coal mines and the improvement of high-yield and high-efficiency mechanization in China, the coal dust produced by the crushing station, as a necessary intermediate link of coal mining and beneficiation process, is one of the five major disasters (water, fire, gas, coal dust and coal seam roof) in coal mines. Coal dust not only aggravates the problem of ecological environment pollution, but also has a serious impact on people's life and health. So the long-standing coal dust problem in crushing stations makes prevention and control work imminent. Based on the analysis and summary of the research status of coal dust hazards and prevention in coal crushing station in China, the hazards of coal dust in production safety, working environment and occupational health of coal crushing station are briefly described; This paper summarizes and evaluates the technologies, devices and effects of coal dust prevention and control commonly used in large crushing stations of open-pit coal mines in China, and briefly introduces the advantages and disadvantages of coal dust control experience and methods of large crushing stations of open-pit coal mines in China, so as to provide reference and reference for scientific and efficient dust prevention and dust removal of crushing stations of large open-pit coal mines in China, It also points out the direction for the future research on coal dust properties and the development of coal dust control technology.