Abstract: Four-rotor UAV practical platform use microcontroller as the main control system, lithium battery as the power system, and collects the attitude data and altitude data of the four-rotor UAV through various sensors to ensure its stable flight. The platform covers a wide range of subjects, such as optics mechanics electronics and computer technology, supporting experimental projects such as mechanical design, hardware circuit design and welding, sensor application and program design. In the process of teaching, the project-based teaching mode is adopted to connect various knowledge points in series to help students build a complete knowledge system and improve their engineering practice ability.