Abstract: The underground construction across a large fault area faces problems such as fault conductivity analysis, water abundance analysis of strata under construction and construction process control. This paper discusses the choice of engineering measures under the conditions of a specific geological body. According to the results of the hydrogeological properties analysis and exploration of fault, the scheme of vertical hole position was chosen, the technical measures to safely cross the fault was proposed and finally the safe construction of the project was ensure. This paper provides some practical reference for the selection and implementation of this kind of engineering scheme through the example of the vertical holes in air return roadway.