Abstract: Solid bitumen is widely distributed in the Middle-Upper Cambrian limestones,the Sandu-Danzhai region of southeastern Guizhou Province.Analytical technologies including isotope,saturate hydrocarbon gas chromatogram,saturate and aromatic hydrocarbon GC-MS were applied to study the organic geochemistry and oil-source correlation of it.The results show that the Cambrian solid bitumen in this area is mainly generated from the blackshale of Low Cambrian Zhalagou Formation.