The dredging robot is specially developed for high-risk and confined working environments such as underwater, closed pipes, sedimentation tanks, and pools. It can be remotely controlled throughout the entire process and automatically completes the suction and cleaning of silt, mud, and debris. It eliminates the need for traditional manual well-dredging operations, has a high safety factor, fast operation efficiency, and lower energy consumption, and is widely applicable to dredging projects in multiple industries.