Abstract: Nowadays, the method of provenance analysis have numerous, the authors analyzed the provenance by using heavy mineral, the component of sandstone, sedimentation and measure of palaeoflow.The associations of heavy minerals and components of sandstone indicate that there at least existed two provenances, i.e., Dunhuang-Alxa-Langshan ancient land and Mazongshan-Guaizihu uplift zone. The sedimentation and palaeoflow measurements indicate the existence of another provenance in northern study area within Mongolia. In conclusion，the study area had three provenances in Xiaodushanian-Zisongian stage of Carboniferous-Permian, which were Dunhuang-Alxa-Langshan ancient land, Mazongshan-Guaizihu uplift zone and northern provenance in Mongolia.