The invention relates to a silkworm-snake combined type robot that can be recombined, comprising a snake head and a body. Each single body on the body is provided with a measurement and control unit,an information transmission unit and cables. The single body is provided with a navigation and positioning system, an information system, a marching drive device, a cable swivel device, a controller and a single body interface, and all single bodies are connected in series with each other sequentially through cables and the single body interface; a search and rescue robot system constituted by theinvention also comprises a manipulater that controls the operation and a main measurement and control platform arranged on a safety location, the main measurement and control platform is connected with the robot snake head and the body through cables, and the manipulater is provided with a hand-held operation panel and a wireless control device. The silkworm-snake combined type robot that can berecombined and the search and rescue robot system constituted by the robot have the advantages that the cable connection solves the energy supply problem for the robots; the single body of the robot can receive and release cables initiatively and has high autonomous ability, thereby avoiding the drag, entwisting, clamping and damage of the cables and having high flexible moving ability and long-time operation ability.