The cockpit in which the support-mechanism is set to match the control of the side-stick can improve the pilot's side-stick control efficiency and comfort, and improve the precision of the special scene such as the aircraft's fixed-point takeoff and landing. In this paper, based on the control characteristics of the side-stick and the technical characteristics of the side-stick device, the working efficiency design of the side-stick handle is deeply analyzed; the side-stick & support-mechanism is systematically studied as a whole for the first time, the angle of the side-stick handle and the matching support-mechanism are precisely designed, and the relative constraint relationship between the side-stick control and each type of support-mechanism is given. In order to improve the man–machine efficiency to the maximum extent, the effect of side-stick & support-mechanism on pilot's control posture is studied, a general standard posture of side-stick control was proposed and the pilot was invited to carry out test and verification. The results show that the side-stick control method combined with the standard posture of pilot's side-stick control and the constraint relation of side-stick & support-mechanism can improve the cross-course easily coupling problem to a certain extent when the side-stick is operated at a small angle, improve the pilot's comfort, and save the training time of pilot's side-stick control.