Using three parameters (the change of accelerator aperture, the vehicle speed, the accelerator) shift control in AMT vehicle, the vehicle speed response lagged to the change of accelerator aperture for the large inertia of the automobile, and the phenomenon of shifting frequently occurred when accelerator aperture varied extensively. The fuzzy control method was proposed on the base of three parameters into which the change of accelerator aperture was added. Meanwhile, aimed at the problem of excessive input parameter and rule, the method of double fuzzy rule was proposed which reduced the amount of rule, improved the processor operation ability. The simulation results verify the validity of control strategy.