At present, most of the new mines were  integrated and technically innovated in our country, which faced the threaten of goaf and hydrops in roadway construction. Roadway construction in Huasheng mine of Ministry of Coal Industry Tenth Engineering Division was introduced in this thesis. Three main roadways crossed 84 m goaf, through No.2 and No.3  coal seam mining subsidience construction under the conditions of inferior geology, broken surrounding rock and difficult supporting. Druing the No.2 and No.3 coal seam goaf construction process, the grouting reinforcement  scheme that working face ahead of pre-grouting chemical pulp combining grouting behind segment was conducted and got good result.