Abstract: Through analyses of outcrop, core and FMI logging data, it is considered that vertical fractures and high?angle oblique fractures are the dominant natural fracture types in Triassic Chang?8 member of Jinghe oilfield in Ordos basin. These fractures are mainly NE-SW trending, which are mainly developed in sandstone reservoirs with a few strata?penetrating fractures and relatively low filling. Most fractures are open with relatively good validity. The development of natural fractures is mainly controlled by lithology, structural deformation and fault, and the fault is the main factor. The prediction result of natural fracture distribution shows that the fractures are best developed in Wellblock Jinghe?17 in eastern Jinghe oilfield and Wellblock Jinghe?2 in western Jinghe oilfield, and the sandbodies in the reservoir are thick with relatively good development potential; fractures in the middle and northern parts of the region are relatively developed with secondary development potential. The prediction results are well matched with the actual production data