Flooding in south air shaft in Wang'ershan gold mine was characterized by high water head,permeable fine fissures and dispersed multi-point rush flow.The directive drill holes were used to drainage,and the south air shaft flooded for 5 years was restored.According to numerical calculation,some dynamic change laws of underwater supply at different depths were derived,and provided a theoretical basis for dewatering drainage of south air shaft in this mine.By using a technology of non-stopping slurry cushion grouting to cut-off water,the difficult problem of quick grouting to cut-off water under the complicated condition of rush flow was solved.