In order to reduce the dust production and reduce the dust concentration of the working environment, Lvgou Mine was taken as example, the possible reason of leading underground high dust concentration was analyzed, the corresponding improvement of dust prevention in transportation and cleaning rain curtain, strengthening the rain injection pressure were adopted. The data comparison after controlling measure showed that these measures could improve mine dust control effect, average respirable dust reduced from 6.95 mg/m³ to 3.13 mg/m³, average total dust from 13.66 mg/m³ to 6.83 mg/m³, with good effect.