Abstract: The paper analyzes the problems in the dust control of outburst fully mechanized excavating face in mudstone floor. According to the geological production conditions of this type of working face, a dust prevention and control technique combining with foam dust removal and rapid segmenting water injection is designed to treat the dust in the working face. In this paper, the process parameters of the rapid segmenting water injection and the matching process of the foam dust removal system are studied in the field. The application results show that dust suppression efficiency of full dust and respirable dust at the driver’s location is 95.8% and 94.8% respectively after comprehensive dust control, which greatly improves working environment.