The aircraft control system of the future will be a combination of fly-by-wire technology and Active Control System (ACS) which, based on the artificial feel system, provides a control strategy for both position and force. The ACS has uncertainties, such as the mass of the simulated stick, system inertia, system damping and friction. In this paper, aiming at the servo control method of ACS, a mathematical model of ACS was setup. Then, to eliminate the perturbation of the external environment, such as noise and disturbance torque, a robust control method based on H∞ was proposed. Finally, to verify the simulation results, the mathematical model was verified via experimental studies.