This machine has adopted an integrated instrument with control functions and especially considered the matching between the engine and the working pump in case of larger displacement due to load increase at the low speed to make full use of the engine power, improve the working efficiency and effectively reduce the fuel consumption. The reliability during heavy-load operations can be satisfied by virtue of its lightweight chassis with high rigidity and strengthened key parts. This machine features sufficient flexibility, convenient transitions, high fuel efficiency and good maneuverability, able to be widely used in municipal construction, highway bridges, housing construction, road engineering, construction of water conservancy works, new rural construction, garden maintenance engineering and other small and medium earthwork projects.