Abstract: The present paper deals in detail with the attitudes and occurrences of the biostratigraphic sequences and fossils from the sedimentary cover exposed in the Jinpingshan region along the western margin of the Xikang-Yunnan axis,southwestern China in the light of the regional geological surveying of the 1∶50000 Lawoxiang and Lizhuang sheets.These biostratigraphic sequences fall into the Yajiang stratigraphic subdivision in the Madoi-Barkam division,and Yanyuan-Lijiang stratigraphic division.The Yajiang stratigraphic subdivision in the Madoi-Barkam stratigraphic divison comprises six biozones,while the Yanyuan-Lijiang stratigraphic division includes fourteen biozones in ascending stratigraphic order.