Recent years lots of new gas plays are found continuously in the Upper Paleozoic in southeast Ordos basin, which displays great exploration prospects. Therefore, the study on Provenance of the Permian in southeast Ordos basin is of great importance to confine reservoir distribution rules. Based on data of well drilling, logging and core as long with outcrop sections of surroundings, the provenance directions of the Permian are confined by means of paleo-current direction measuring in outcrop sections, heavy mineral analyzing, and marginal facies diagnosing as well as facies belt construing. The study shows that the provenance of Shanxi and Shehezi Formation of the Permian in southeast Ordos basin can be divided into three directions which are NNE, NNE, and south, while Yanan region being the center of water catchment; The influence area of southern provenance is bigger in Shan-2 member which influenced areas of north of Yanan; The influence area of northern provenance is bigger in He-8 member which overreached areas of south of Yanan while the southern provenance receded simultaneously.