Hydraulic fracturing is a process in which a crack is created and propagated due to the hydraulic loading (pressure) caused by the fluid inside the crack, increasing oil recovery. In this study, the factors affecting the amount of pressure required for hydraulic fracturing are investigated in a library. According to the results of this study, with an increase in Young's modulus, slit hardness, the tensile strength of the formation and fluid leakage pressure increased on hydraulic fracture. The crack shape is thinner but wider in the hard rock and wider in the lower modulus. Increasing the temperature also increases the pressure required for the hydraulic fracture but requires increasing fluid pressure to increase the cracking distance. The overall result of the gap length in shaping environments is shorter than in brittle environments, which can be explained by the amount of energy absorbed in these environments.