The hand-held through-wall robot is the latest generation of a portable handheld device that adopts ultra-wideband technology and is used for through-wall detection of the moving target. This device can penetrate wooden walls, retaining walls, brick walls reinforced concrete, and other general building wall materials, and can detect the presence of personnel, personnel movement and distance, etc. behind the wall. It is easy to use, and simple for operation. This product is very prominent in the detection function of the moving target in the city building, which can improve the detection efficiency of the first-line combat team and greatly reduce the potential threat of the unknown enclosed space.