Controlling direction on ground is an essential and comprehensive function of aircraft, and architectural design needs to be carry out from the top level of the aircraft during the design process. The quality of its architecture directly affects the competitiveness and safety of the aircraft. Firstly, a scenario analysis of this function was carried out, which generally operated during tow, taxi out, takeoff, landing and taxi in. The different ways of controlling direction on ground were used in different scenarios. Secondly, by comparing and analyzing the controlling direction on ground of four mainstream aircraft types, Boeing 737, A320, Boeing 787 and A350, it was found that A350 has significant differences in control methods compared to the other types, with the addition of the control modes of nose wheel steering through brake pedal, rudder deflection through brake pedal, differential braking through tiller and differential braking through rudder pedal. Thirdly, the main points of civil aircraft architecture design were analyzed, and it was believed that the scenarios of rudder pedals jam/failure and rudder jam/failure should be considered in the process of the architecture design, so that the design result meet the airworthiness requirements.Finally, three kinds of controlling methods were traded off,and a recommended controlling method was given.