The fractures of Dabei gas field are widely distributed in the multi-phase thrust-imbricate structure setting of Kuqa foreland. According to outcrop, drilling core, imaging well logging and experiment data, fracture characteristics, the distribution rule and their contribution to deliverability are analyzed herein. The fractures in study area are divided into two types, structural fractures and non-structural fractures, among which, the structural fractures account for 95%.The structural fractures are mainly composed of high dip-angle simple fractures and netted fractures, low dip-angle structural fractures are relatively rare. The predominant fracture orientation is near N-S which is in accordance with the current maximum principal stress axis, followed by near E-W trending fractures. In general, the fractures are characterized by high fracture density, minor fracture opening and high filling degree. With high porosity and permeability, the fractures of the second member of Cretaceous Bashijiqike formation are developed better than that in the third member in the vertical direction. Laterally, these fractures generally occurred in stress concentration area, such as outskirt of the anticline and near fault, while fractures in the core of anticline are relatively rare. The impact of fracture on single well productivity is mainly featured by its improvement on permeability which can access to 2 to 4 order of magnitude, among which, the fracture surface porosity and fracture density have the best correlation with productivity, fracture opening is a condition which is necessary but not sufficient to productivity. The study on fracture can provide reference for acid fracturing stimulation technology.