Abstract: According to the status of high dust concentration and serious pollution in the fully mechanized working face,it puts forward efficient foam dust control technique. It’s a detailed analysis of the foam dust control mechanism and the efficiency of dust control.According to the production conditions and process ,it designs the working parameters and fixed ways of each component of the foam dust removal system in the fully mechanized working face. By different wetting agent added ratio of flour dust concentration test, the total dust reduction efficiency of dust reaches 91.4~94.2%, it significantly reduces the dust concentration in the working face.