Abstract: Chaiwopu Basin, covering an area of 2880Km² is a small intermontane structural basin. The basin and Junggar Basin arc separated by an important big fault zooe and an uplift of Carboniferous base rocks. It is likely that there is a firm block of Precambrian base under Chaiwopu Basin. During from Middle Carboniferous to Permian, Chaiwopu region was a part of the Bogda rift and the Bogda lake of survived sea. Bogda Moumain uprose in the last phase of Jurassic, there fore Chaiwopu Basin was formed. Chaiwopu Basin is divided into four structural units of first一order. Among the four units, Dabei Depression, with an area of 1200 km², is the prospctive region for petroleum prospecting in the basin. The raps for oil in Dabel Depression are mainly the type of anticline. In Chaiwopu Basin, there are two sultes of combination for source bed, reservoir bed and cap bed and the resources of oil and gas arc very yich. This paper appraises and lines up the local structures in Chaiwopu Basin into four types and raises three advantageous structures that can be drilled preferentially.