Abstract:Through study on coal sedimentary characteristics and coal accumulating changing rule in Shanxi formation, by using a combination of characteristics of coal strata, marking layer, layer spacing, logging curve shape and seismic physical characteristics, coal and rock combination in Shanxi formation have been contrasted comprehensively, and the occurrence layers, morphology and structures of main mining coal strata in Shanxi formation have been determined. It will guide coal mining in this area.