Abstract: This paper introduces the development trend of wind energy utilization in recent years, compares the advantages of offshore wind energy relative to onshore wind energy, and proposes that the deep sea floating wind turbine is an inevitable trend of technological development and objective conditions. The main structure types of offshore floating wind turbines are summarized. The coupled numerical model of floating wind turbines is introduced in detail, including the aerodynamic load model of the wind turbines and the hydrodynamic loads models of the support structure. Finally, the design standards and guidelines of floating wind turbines are introduced.