The invention relates to a gas turbine air valve frequency modulation rapid response control method. A frequency deviation module is added in a variable load loop, and a function value of frequency deviation is used as an input quantity for adjusting a fuel instruction FSR. In the method, optimization is performed aiming at the fuel instruction FSR, the frequency deviation module is added into thevariable load loop in order to increase response rapidity of frequency modulation, a change size of the fuel instruction FSR is determined by the function F (X) of the frequency deviation module, thefunction F (X) can be properly adjusted, and the method is determined by testing according to different characteristics of different gas turbines. After usage, a power grid frequency changes; frequency change signals directly enter into a control valve control program, a power generation load of the gas turbine is adjusted at the fastest speed, a frequency modulation function and temperature control are considered, a unit is ensured to participate in peak regulation on the basis of safety, output parameters can be adjusted through a frequency fluctuation test in an F (X) mode, and drastic load changes caused by frequency fluctuations are avoided.