Abstract: Introduce the Scheme-adaptive fuzzy control, which can readjust the related parameters of the fuzzy controller on-line. In this paper, by the example of some vehicle, the analysis and the simulation of the performance for the adaptive fuzzy control semi-active suspension,shows the scheme is effective. Both the vehicle's comfort and safety performance are developped. The tested results are in agreement with the calculated ones, and the adaptive fuzzy control semi-active suspension performance is better than that of the passive suspension. At the end of this paper, the prospect for the problems that are to be solved in application is made.