In recent years, fusion-type aircraft has developed rapidly due to its outstanding cruise aerodynamic performance, but at the same time, it is limited by the layout characteristics, the Steering surface is arranged at the trailing edge of the wing, the stability and maneuverability are weak, and the take-off and landing performance is poor. In this paper, the method of realizing short-range take-off and landing is proposed innovatively, and a kind of integrated aircraft is designed, which takes into account the take-off and cruise performance. As the research object, the force analysis and theoretical calculation are carried out. On the premise of ensuring the performance of short-range take-off and landing, the problem of optimal cruise power distribution is deduced and analyzed, and the optimal cruise performance is ensured. The relevant design can provide reference for the design of this kind of aircraft.