Abstract:The model based on genetic algorithm is applied to optimize the aerodynamic performance of a 1.5 MW wind turbine blades,and the objective function is annual energy production under the wind speed of Weibull distribution.The wind turbine blade is divided into 13 segments along the spanwise,and the power of each segment is used as the fitness function of genetic algorithm.The optimized aerodynamic parameters are more reasonable than those of the Wilson method and Genetic algorithm under rated wind speed,and chord length and torsion angle present a more streamline distribution and the torsion angle decreases overall.