As coal mine increasing mining depth, mining difficulty increasing, complex geological structure was one of key factor to restrict mine production, mining succeed problem was getting serious. Based on Chensilou Mine 21211 transformed lane came across large fault in short distant mining, with fault structure development, big fall, fault zone, stress concentration, by studying tunneling equipment, construction technology, supporting, the design of crossing fault, the labor organization and related technology, mainly with mechanized mining machine, assisted with blasting rapid mining, which realized rapid mining under high stress roadway complex roadway, ensured the normal mining.