Abstract: In order to predict the development and distribution of fractures effectively, the paper focuses on fractures prediction based on the structural curvature attribute of seismic data deformed on the longitudinal fold in Huerguoshi anticline of southern Junggar Basin in Xinjiang Province. The seismic data is used to track the stratigraphy and faults, to establish structure model and extract plane curvature used by Petrel software. Because of the limitation of plane curvature for fracture prediction, the “ant tracking” is used to extract the fractures based on identifying of the 3D curvature attribute. Living example in the paper proves that these methods can be used to predict the development and distribution of fractures simply, efficiently and comprehensively, and are of strong practicability.