Abstract: Baijigou Coal Mine is a fully mechanized mining face with layered mining.During the process of bracket withdrawal,it is easy to occur phenomena such as fan-shaped surface tearing the top net,leakage of gangue and others,which is not conducive to safety management.The efficiency of bracket withdrawal is low and the labor intensity is high.The practical application of the technical scheme of "4 basic brackets as shield brackets+" one beam and three columns "directional lifting shed support roof" is carried out in the 0102203 fully mechanized mining face.The results show that the roof is effectively controlled,and the bracket withdrawal is completed in only 9 days,saving 120 000 yuan in costs,significantly improving the efficiency of bracket withdrawal,reducing safety risks,reducing the labor intensity of operators in a large degree,and the safety and economic benefits are significant.