Water-saving maintenance device for road greening

The water-saving maintenance device comprises a roadbed and further comprises a greening groove, a drainage mechanism and a maintenance mechanism, the greening groove is fixedly connected to the top of the roadbed, the drainage mechanism is installed at the bottom of the roadbed and composed of a municipal water pipe and drainage holes, the municipal water pipe is installed at the bottom of the roadbed, and the drainage holes are formed in the municipal water pipe. Drainage holes are formed in the surface of the roadbed, a maintenance mechanism is installed at the bottom of the roadbed, a water storage tank is formed in the bottom of the roadbed, a water pump pumps out water in the water storage tank, the water is discharged along a drainage pipe and a connecting pipe, and finally the water is sprayed into a greening tank from a flow dividing pipe for greening maintenance. The water storage tank is directly dug at the bottom of the roadbed, construction and maintenance cost is reduced, extra space is not occu