Greening tree irrigation water-saving module

The utility model relates to a greening tree irrigation water-saving module, the tree planting module is installed on a tough cross road, the tree planting module comprises a collecting tank, a siphon pipeline and a water absorption sponge, the collecting tank is an annular groove, the water absorption sponge is arranged below the collecting tank, the siphon pipeline is arranged between the collecting tank and the water absorption sponge, and the siphon pipeline is connected with the collecting tank. The siphon pipeline is communicated with the collecting tank, a plug is further arranged at the position where the siphon pipeline is communicated with the collecting tank, the plug is composed of a plug head and a floating block, and the buoyancy of the floating block is larger than the gravity of the plug; water can be collected through the collecting tank, the water can be stored through the siphon pipeline, meanwhile, the water in the collecting tank can be rapidly conveyed to the water absorption sponge, and