The surrounding rock of the haulage way outside the 855 m level of the No.24 vein in Xibaishu Mine of Xinda company is broken,accompanied by a large amount of water gushing,which makes the excavation problematic with great potential safety hazards,low single-shift platform efficiency,and high support costs.To ensure the safety and efficiency of roadway excavation,the technical measures of in-advance water exploration combined with in-advance pre-grouting and advance long bolt support are put forward,the engineering layout of grouting holes and grouting process parameters are given,and the experimental research is carried out.The test results show that the use of in-advance pre-grouting for water plugging,grouting reinforcement,and advance bolt can ensure the excavation progress,greatly increase the safety coefficient,effectively reduce the operation time of personnel in the water-pouring environment,and obtain the economic and technical index of 45 m monthly footage and 13 % reduction of support costs,which can provide references for similar mines.