The WRF wind model and SWAN wave model are used to calculate seperately the wind and wave fields of Bohai bay,which are in good agreement with the measured data of a wave buoy.With the sample of the results,the P-Ⅲ curve is used to analyze the characteristics of wind and wave with a return period of 50 years at -15 m depth contour in Laizhou bay. MIKE21 SW model is used to establish a numerical model of wave for Weifang port and calculate the wave propagation with a return period of 50 years.The results show that the model is suitable to simulate the wave propagation in Weifang port,and can provide a scientific reference to the design and construction of the pier,dike and channel in the port.