Hydraulic fracture as a method to stimulate oil reservoirs depends on various factors. Since the hydraulic fracture operation is high-priced, predicting how the operation will progress and the required fracture pressure to determine the appropriate pump before the operation on the site is very important. In the current research, numerical modeling of hydraulic fracture in 4 different modes in ABAQUS finite element software and comparing the results with it's laboratory modeling to find the fracture pressure has been done. Then, sensitivity analysis was performed using ABAQUS software to investigate the effect of changing different parameters on the fracture pressure. These, input parameters, which are actually well data, include modulus of elasticity, horizontal stress, vertical stress, tensile strength and Poisson's ratio. The results show that the horizontal stress and tensile strength have the greatest effect on the fracture pressure, and the effect of parameters such as vertical stress and Young's modulus in determining the fracture pressure is very insignificant. In this research, the conducted modeling is similar to the laboratory models, and the samples are designed in pristine form without any initial cracks. The results of the numerical modeling had a slight difference from the laboratory modeling. This difference was calculated to be less than 1% in tests 1 and 4; in test 2, this difference was 13% and in test 3, this difference was 15%. The direction of the created cracks was in line with what was previously stated in the theoretical cases and what was obtained in the laboratory modeling. The resulting cracks appeared along the axis of the borehole and perpendicular to the horizontal stress. According to the results, numerical modeling can be used to develop hydraulic fracture operations.