Abstract: In order to solve difficult problem of supporting -150m pump room influenced by repeating mining of overlying mining face in Micun Colliery， based on FLAC^2D numerical simulation and field test， roadway surrounding rock deformation rule was analyzed and the surrounding rock control technology of increasing stability by overstriking anchored cable. Filed industrial test showed that stress and displacement field of floor roadway took on obvious asymmetry. Convergence between roof and floor was larger than that of two-sides and right side was larger than left side. Whole displacement field was sensitive to two-side deep surrounding rock’s displacement. Applying increasing stability technology could fully exert bearing ability of deep surrounding rock and take the advantage of thick and stable property of surrounding rock-supporting system， and could effectively control roadway asymmetry deformation influenced by repeating mining.