Due to the viscosity and terrain roughness, there is a large wind gradient near ground inside the Planetary Boundary Layer, which will result in the torque variation and the pitching moment of the blade, thus in the change of power output. In order to improve the output power, a new kind of configuration of wind chiral blade is put forward based on Magnus effect. For the whole study, a reference model of NACA 4418 was chosen and compared as the classical blade and the chiral blade was simplified as rotating cylinder in segment. The theory of blade element momentum (BEM) was used for the analysis and computation of two kinds of blades. The studies show that the loss of efficiency of classical blade due to Planetary Boundary Layer is estimated to 10% and the gain in efficiency when substitute the classical blade by chiral blade reached to nearly 70%. Meanwhile to get a more accurate result, the Computational Fluid Dynamics (CFD) software FLUENT was used to simulate under the pseudorotating condition. The results show that the loss of efficiency of traditional blade is estimated to 4~5% and the gain in efficiency of chiral blade reached to around 60%. (Therefore, chiral blade has advantage over classical blade turbine in retrieving energy inside the Planetary Boundary Layer.