Process given signal correction method and device of engineering steepest control system

The invention discloses a process given signal correction method and device for an engineering steepest control system, and the method comprises the steps: inputting an obtained process given signal of the engineering steepest control system into a proportion arithmetic unit, so as to output a proportion arithmetic signal; inputting the proportional operation signal into a third-order inertial filter to output a third-order inertial filtering signal; inputting the third-order inertial filtering signal into a first-order inertial filter to output a first-order inertial filtering signal; inputting the third-order inertial filtering signal to a minuend end of a first subtracter, and inputting the first-order inertial filtering signal to a subtrahend end of the first subtracter to output a first subtraction signal; inputting a process given signal to the minuend end of the second subtractor, and outputting the first subtraction signal to the subtrahend end of the second subtractor so as to output a given correcti