In order to improve the water main mining shaft promote efficiency, reduce the transportation cost, achieve continuous, efficient and safe transportation, the hydraulic coal mining method in the use of belt conveyor of the possibility of Changyuan Mine was discussed. The existing hydraulic mining for promotion methods were introduced, the slope development problems existing in the inclined mine and the water mining use of the advantages and feasibility of belt conveyor were analyzed. The practice showed that round tube belt conveyor solved the coal slip in inclined shaft of hydraulic mine, basically eliminated the safe hidden trouble, greatly increased slope hydraulic mining inclined mine hoisting capacity, expanded the scope of application of the hydraulic coal mining method, reduced the hydraulic mining coal transportation and upping cost.