Abstract: The comprehensive analysis on engineering construction environment of water karst mine of Nanlizhuang iron mine in Hanxing，technical issues of water inrush and flood control，shaft-flooding events，and aquifer water inrush mechanism are carried out.Based on these，and by means of systematic research on integrated technical solution of water prevention and control “exploring，blocking，cutting”，such techniques and measures as S hole exploration and grouting，rockwall firmness with advanced small pipes and chemical grout applicable are applied during work progress to successfully complete auxiliary shaft excavating and lining.It can be used as a reference by other mine constructions with similar working environment.

Key words: Vertical shaft, Water prevention and control, Excavating and lining construction