Abstract: Taking the upward sublevel filling method used in difficultly mining ore body of Xincheng Gold Mine as engineering background，the numerical simulation software FLAC3D is adopted to analyze the change law of the stress and displacement in the process of the first step and second step stoping. The underground pressure activity law can be forecasted quantificationally during the mining period. At the same time，arming at the problem of the mismatching between stope ground pressure and anchor bolt support mechanism，the combined support scheme of long anchor cable and resin bolt and support parameters are determined and the support effect is evaluated. The research result provides the reliable theory for the ground pressure control of similar mine.

Key words: Filling mining, Stope ground pressure, FLAC3D, Anchor bolt support