A fast and accurate contrast method for the performance of wind turbine airfoil based on Profili and Fluent software was proposed. A new airfoil was obtained by using the positive problem design method. Based on it, the geometrical shape contrast, the aerodynamic coefficient contrast and the distribution contrast of flow fields were analyzed. It is found that the aerodynamic performance of the new airfoil is better than one of the initial airfoil and the pressure difference of the top and bottom surfaces of the new airfoil is also increased significantly. By adopting the combination of numerical simulation and the experimental study, the aerodynamic performance of the wind turbine including the new airfoil was compared with one of the wind turbine including the initial airfoil. It is shown that the resultant moment of the new wind wheel is higher than one of the initial wind wheel. The starting characteristic of the new wind turbine is obviously improved and the generated energy per unit time is increased at least by 10%.