The series of three-dimensional imaging sonars can be easily installed on platforms such as ships and unmanned vehicles. Some models can also be handheld or fixedly installed underwater, with the characteristics of low power consumption, small size, easy use, high reliability, and low operating cost. This series of products can perform high-resolution imaging of underwater targets, underwater terrain, landforms, and buried targets, and can be widely used in underwater target detection, underwater security, marine engineering, channel surveys, underwater geophysical exploration, underwater search and rescue, underwater archaeology, water conservancy, fisheries and other fields.