7623 filling mining working face of Xingtai Mine, Jizhong Energy Resources Corporation, was explored No. 2. upper coal mining. Based on extraction process passing through 5 middle lanes, which all adopted the anchor net supporting, produced a large amount of waste in the process of stoping anchor, when pushing 326 m the working face needed to cross five low-level 7109 wear layer coal roadway. Through research, the company decided to make full use of waste anchor and form the backbone of the paste material to support the protection roadway passing from wearing layer. The technology protected the hydraulic support, made full use of the waste materials and generated considerable economic benefits.