Abstract: To resolve the problem of high dust concentration during the process of coal cutting at fully-mechanized working faces and obtain rational dust control parameters, as well as to meliorate working conditions, considering No. 2225 working face in Xingdong Mine as a research background, numerical simulation was performed using FLUENT software to track dust movement laws during coal cutting at the fully-mechanized working face based on the theory of gas-solid two-phase flow. Compared with the actual dust concentration distribution in the mine, the simulation results are basically consistent with the actual data. The wind velocity at the fully-mechanized working face, shearer drum rotation speed, valve speed, and wall condition mainly affect the dust concentration distribution at the fully-mechanized working face. It is concluded that the dust removal effect is better when the average wind velocity is 1. 4 m·s^-1, the drum rotation speed is no more than 2. 5 rad·s^-1, and the valve speed is less than 1. 5 m·s^-1. Meanwhile, sprinkling water, which can keep the coal wall moist, plays a significant role in capturing dust.