Abstract: The incline-wall filling mining method is a new effective one,and the issential in technology of which is that how increase the stability of filling-body. This paper mainly intruduces the calculation analysis of filling body stability and a new reinforcing measure by prelaid" Jingba" sticks during the testing of the mining method with uncemented coarse-particle filling material in Tin Ore Mining Bureau. The result of field fest shows that the reinforcing method is feasible in fechnology,rational in economy,and makes a good act on the increasing stability of uncemented coarse-particle filling body, provides conditions for successful test of incline-wall filling mining method.