Frequent typhoons in the southeastern coastal waters of China pose a significant threat to the structural stability of offshore wind turbines. This study develops a numerical model of an offshore wind turbine foundation using SACS software, focusing on the stress and deformation characteristics of the tower and pile foundation under combined wind, wave, and current loads. The main findings are summarized as follows:(1)Under typhoon conditions, the numerical analysis of pile foundations should fully account for the wave-current loads induced by typhoons to enhance the accuracy of model predictions.(2)As the typhoon intensity increases, the overall deflection and shear force of the tower and pile foundation exhibit a pattern of initially increasing, then decreasing, and subsequently increasing again.(4)Typhoons significantly impact the deflection of (3)the tower and pile foundation, but have a relatively minor effect on shear force.Implementing a blade pitch control strategy can effectively reduce the deformation and stress response of the tower and pile foundation under typhoon loads.