Abstract: In the traditional design of a vehicle's front wheel alignment parameters and steering mechanisms,in general,the effects of uncertainty factors on its performance were not considered,and the mutual interaction between the front wheel alignment parameters and the steering mechanisms also were not taken into account,causing the vehicle's poor performance.In order to reduce the interference of the uncertainty factors,we apply the existing robust design method to analyzing such uncertainty factors as manufacturing error and assembly error of the vehicle's parts and components.We use the preference function to analyze the uncertainty factors such as a designer's subjective factors and objective function weighting and then integrate them into the integrative model for designing the front wheel alignment parameters and steering mechanisms.The design results show our design method improves the robustness of the alignment parameters and steering mechanisms of the vehicle front wheels.