In order to solve the control surface redundancy problem of compound unmanned helicopter heading control and forward flight speed control, the control allocation strategy of heading channel and the speed control scheme of longitudinal channel are proposed to give consideration to both maneuverability and stability. From the point of view of stability, coupling and maneuverability, the object characteristics at different speeds are analyzed in detail by qualitative and quantitative analysis methods. A directional control allocation strategy is given according to the control sensitivity, a speed control method is given according to the aerodynamic characteristics of different speed sections, and finally the control strategies of four channels are given, which provides a basis for the control law design of the compound unmanned helicopter. The results show that the study can provide a reference for improving the manipulation sensitivity and control stability.