In order to achieve the strategic goal of "carbon peak and carbon neutrality", the development of a high proportion of renewable energy will be promoted continuously in our country. Therefore a new power system based on new energy will formed gradually. As a renewable clean source, the development and utilization of wind energy has become an important research direction. Studies have shown that the wind speed in the higher altitude is stronger and the wind direction is more stable. Therefore, breakthroughs in wind power generation can be achieved by capturing highaltitude wind energy. In order to ensure the safe, economical and efficient operation of the highaltitude kite power generation system, the design of its control system has extremely high requirements. This paper starts from the basic principles, development history and application status of several highaltitude wind power technologies. Then, a typical Yo-Yo structure kite is modeled. Based on this model, the principles and characteristics of various nonlinear control technologies are analyzed, and the principle of nonlinear model predictive control and simulation results of trajectory tracking control are described in detail. It summarizes that the key problems of highaltitude wind energy control include that control algorithm calculation is too consuming, the research of control system reliability is lack and the control methods are not intelligent.