Combining the conditions of surrounding rocks in the Ⅸ 1309 thin coal seam face of Chengzhuang Mine, the deformation of the roadway under different preload conditions was analyzed by FLAC3D simulation software. It was concluded that by applying high preload to the anchor, the anchor support was promoted. The conclusion that the protection system could be carried in a timely and active manner effectively reduced the amount of sinking of the roof. Based on this, a one-time strong support technology using anchor cable is proposed. The on-site mining pressure monitoring showed that the anchor-net cable strong support system could effectively control the deformation of the roadway and ensure the safety of the working face and efficient mining.