The whole machine adopts hydraulic transmission, with a compact structure and flexible maneuverability, suitable for working in narrow fields, and can complete construction tasks that cannot be completed by large machinery. The connection between the tool working device and the tractor is a quick coupling type, and the hydraulic pipeline adopts quick change joints, making installation and disassembly very convenient. The loading device, excavation device, and tractor hoist device share a hydraulic system, and the hydraulic cylinder adopts national standards, which is easy to maintain.