Abstract: To study the movement law of overlying strata when 7₁22 working face crosses through faults, based on the geological conditions of Qinan Coal Mine 82 mining area, UDEC numerical simulation software is used to analyze the stress state and plastic zone distribution characteristics of roof and floor of working face, and then we present the roadway pre-heading technology for crossing through the fault with large gap (2.0 m to 2.5 m). Pre-treating the fault can make the working face safely and improve the quality of coal; it is beneficial to the safe and efficient mining in thin coal seams.