Fracture characteristics of individual wells of Keshen-2 gas field were analyzed using data of cores，thin sections and imaging logging，and interwell fractures were predicted quantitatively by stress field numerical simulation. The primary controlling factors of fracture development and the relationship between fracture and gas production were also discussed.The results demonstrate that upright and high angle shearing structural fractures with NNW-NW strike mainly develop in Keshen-2 gas field. Fracture aperture from core data are mainly between 0 and 0.2 mm，while that of microcosmic fractures are generally between 0.01 and 0.06 mm. Fractures are mainly filled by calcite，and the filling coefficient is approximately 0.63. Drilling fluid loss in the fractured zone is large，and the fracture linear density and fracture porosity are both high in fault belts which are the most favorable areas for fracture development. Fractures at the top of anticlines have low density but high aperture and porosity，and wells in these areas have high gas production，thus fractures develop well at the top of anticline in general. The increase of calcium content and the decrease of clay content are beneficial to the development of fractures. Fractures in underwater distributary channel or estuary dam develop better than those among interdistributary channels. Within the development process of fractured reservoir，reservoir protective procedures should be taken to avoid the rapid drop of production capacity.