Unmanned boats use intelligent navigation, remote control and automatic obstacle avoidance technologies, and have efficient operation and environmental adaptability. They are used in hydrological monitoring, ocean mapping, rescue and military patrols. They can use pure electric, solar and fuel cell power, lightweight hull design, autonomous navigation and path planning based on GPS/RTK and IMU, and can carry a variety of mission payloads, such as fire extinguishers, life buoys, underwater robots, etc.