Abstract: Enhanced geothermal system(EGS)could extract deep geothermal resource from low permeability hot rock through media circulation. Based on the real geological and logging data of one abandoned well YS 2, we first studied the conditions existing in the deep formation. A 3D fracturing model was created and various fracturing schemes have been numerically conducted. Subsequently, we performed the hydro-thermal simulations with different injection rates through the different fracture reservoirs generated by the hydraulic fracturing. Last, depending on the research results above, we obtained the optimal fracturing and operation strategies. The results indicate that in the optimal fracture reservoir, an electrical power of 0.60～1.23MW(10 fractures) over a 20 years period could be achieved when the 3 horizontal wells system was adopted and injection rate was 30kgs-1.