As the coal mine workers mining depth and mining difficulty increasing, complex geological structure was one of the main reason to restrict coal mine production, which caused mining connection more seriously. Chensilou Mine 21603 working face ventilation roadway and transportation roadway big slope in the partial section mining, with maximum gradient 36°, through the study of machine climbs, transportation system, operation, mining faces operation, crossing fault solution, comprehensive tunneling machine driving was settled as the main mining way, the rapid excavation technology of auxiliary bomb mining, which realized safe and quick large sloping roadway mining, ensured the normal mining connection.