In this paper a class of multivariable fuzzy adaptive con trol algorithm withdecoupling design is propoed,The proposed simplification controller is based on the decompositiontheorem of muItivarinble fuzzy conditional statement andhierarchical multirules structure,Thefuzzy modification of controller's rule is achieved by looking for a medifiable coefficient table forrestraining disturbance.Simulation results demonstrate the effectiveness of the controller.