At present， spiers is the main devices of the wind tunnel simulation， spiers has obvious control of wind profile. However， due to the unclear action mechanism， the spiers are mostly arranged according to experience in wind profile adjusted. In this paper， three common spiers shape are used （trapezoidal， triangular and crooked triangle） to obtain the characteristic of the wind profile and turbulence intensity profile. The impact of the changes in the shape， the number and the location of spiers are also studied. The results show that the shape of the wedge is directly related to the height of the boundary layer wind field and the power exponent. The wider the average width of the wedge， the higher the impact height and the greater the power exponent. Increasing the number of sharp wedges can increase the power index of the downstream wind field， but has little effect on the wind field range； Raising the height of the wedge can increase the height of the downstream boundary layer wind field. With the use of baffles and roughness elements， the target wind profile can be quickly debugged.