The Dalongshan station of NO.6 of Chongqing railway transit is located at the city main road, interfered with large amount of earthwork, complicated tubes and various brace forms. The station is the transit hub of the TBM, and the project is under big pressure. In order to guarantee the main construction scheme and the whole time of the No. 6 railway line construction, and to reduce the cost and influence on surrounding environment, the construction program is optimized and the construction technologies energysaving and emission reduction technologies are improved. The construction scheme and environment requirement are guaranteed, and good social and economic benefits are reached.