Abstract: Discussed application of sequence stratigraphic analysis of outcrop in stratigraphic framework of coal-bearing formation according to Carbniferous-Permian standard profile in Xishan,Taiyuan.The deposuite in this area is divided into two kinds of sequence:the eperic sea mixed carbonite-elastic sequence and fluvial elastic sequence,which including 2 sequenses respectively.Their formatoin is controled by third sea-level change.