Abstract:The Paleozoic in lingqing depression and Ordos basin are North China Kraton Paleozoic structural layer and have similar petroleum-geologic condition to Paleozoic in the Suqiao buried hill situated in same basin. The paper carried out the correlation and analysis of basic conditions of petroleum accumulation, such as genesis, reserve, cap, trap and preservation, for Lingqing depression and Ordos basin, and the anticlines and half-anticlines, having good preserved conditions in Paleozoic of Lingqing depression, are the field of interest for formation of petroleum reservoir. They should become firstly selected objects of petroleum exploration in future on in this region.