The mooring force of ships is an important condition for wharf structure design and mooring bollards selection. The wind，current and wave are the main controlling factors of ship mooring force. Regarding the differences in the calculation methods of ship mooring force in Chinese and foreign wharf structure design standard，the Chinese and foreign codes commonly used in the design of wharf structures（China JTS，Spanish ROM，OCIMF guideline，British BS 6349）are selected to compare and analyze the calculation formulas of wind loads on ships，and the wind loads under different wind direction angles are calculated combined with engineering examples. The result shows that：1）There are obvious differences among different standards in the adaptability range of ships，the selection of wind speed，the area of ships subjected to wind and the wind correction coefficient. 2）The wind load of the 300，000 t tanker calculated by ROM is the largest，and the calculation result of JTS is the smallest.