Analyses of stratigraphic succession and sedimentary characteristics of the Carboniferous-Early Permian deep-water facies in northern margin of the Dian-Qian-Gui Basin enable us to reconstruct the sedimentary history and its control factors.The Carboniferous-Lower Permian,which includes totally nine lithostratigraphic units,the Luzhai Fm.(C1lz),Baping Fm.(C1bp),Xiaruya Fm.(C1xr),Shangruya Fm.(C1sr),Wangyou Fm.(C1w),Muhua Fm.(C1m),Dawuba Fm.(C1dw),Nandan Fm.(C1—P1nd)and Chuanbutou Fm.(C1c),is characterized by sandstone,carbonaceous shale,siliceous mudstone,siliceous rock,debris flow deposits,mudstone and dolomitic limestone,which are quite distinct from those of the deep-water basin in southwestern Guangxi.Based on the detailed observations on the lithofacies,microfacies characteristics,sedimentary structure and fossil assemblage of key sections,four sedimentary facies can be recognized,including the intra-platform facies,slope facies,deep-water shelf facies and platform foreslope facies.The stratigraphic architectures and characters suggest that sedimentary evolution of northern margin of the Dian-Qian-Gui Basin could be divided into three stages:period of intense rifting(Early Tangbaguan),period of reduced rifting(Middle Tangbaguan-Dewuan)and period of stable rifting(Late Carboniferous-Early Permian).