The invention discloses a method for designing a special wind turbine airfoil profile and a special wind turbine wing profile obtained by the designing method. In the invention, a corresponding airfoil profile can be obtained by expressing the geometrical shape of an airfoil profile with a simple high-order polynomial shape function and altering the coefficient of the shape function polynomial according to a special constraint condition. The special wind turbine airfoil profile is in a Reynolds number range with Re=1*106-3*106, has low-airfoil profile surface roughness sensitivity, higher lift coefficient and maximum lift drag ratio, as well as high lift drag ratio and favorable structural property in a larger attack angle range, and has favorable compatibility and acoustical property compared with other wind turbine airfoil profiles.