Abstract: In recent years,horizontal well fracturing as an important means to improve the production and recovery of lowpermeability gas reservoir is widely used in Sulige gas field.By using the production capacity model of fracturing horizontal well,the,fracture length,fracture flow capacity,crack spacing,and the effect of the angle between the fracture plane and the horizontal wellbore on fracturing horizontal well production have been analyzed.The relationship between various factors and yield chart has been drawn.According to multi-factor orthogonal test analysis,the main factors influencing the fracturing horizontal well productivity in turn are fracture numbers,fracture spacing,fracture length,angle and fracture flow capacity.At last the proposed integrated idea optimized reasonable fracture parameters of horizontal well fracturing.