The air-water operation system composed by a drone and an unmanned boat can greatly improve the ability and efficiency to complete operations.Therefore, the control of the rotor drones autonomous landing on moving unmanned boats is studied.The position tracking of the unmanned boat is realized by using the unmanned boats movement information and the drones GPS information obtained by the drone through communication, as well as the calculation result of the recognition and positioning of the landing marks.According to the obtained attitude information of the unmanned boat, the drone keeps the attitude tracking of the unmanned boat and finally autonomously lands on the moving unmanned boat.The air-water system composed of the quadrotor drone and the unmanned boat is built to conduct experiment.Experiment results indicate that the system can reliably complete the tasks of each stage in the process of autonomous landing of the drone, which verifies the feasibility of the system.