In view of ascending mining problem to near distance coal seam of both the No.8 and No.9 coal seam, theoretical analysis and numerical simulation were applied to carry out its feasibility evaluation. The results showed that technical proposal of ascending mining for No.8 and No.9 coal seam was feasible. Taking technology measures such as the rapid advance, artificial roof , chock-shield hydraulic support of high rated working resistance and so on, can effectively improve the subsidence of theNo.8 coal seam, so as to maintain the coal 8th continuous bending, achieving high yield and high efficiency coal mining safety of No.8 coal seam. The application had achieved good technology the economic effect and social economic benefits, promoted the development of close distance coal seam mining technology.