To provide a spraying system capable of supplying a plurality of liquid to plants while suppressing the increase of device scale as much as possible.

This spraying system 1 is provided with: a water tank 5; a chemical tank 6; electrolytic water tanks 7, 8; a selector valve 10; a sub tank 15; liquid-supplying systems 30i (wherein, i is a natural number of ≥1); and a control system. The selector valve 10 switches the liquid to be flown to the liquid-supplying systems 30i to any one of water Wa, a liquid state chemical ac, acidic water aw and alkaline water iw. The liquid-supplying systems 30i are provided with at least a plurality of spraying nozzles 31, a plurality of circuit motor valves 35ij, flowing pipes 36i and a fluid machine 45i as one system, and spraying the liquid outputted from the selector valve 10 to a defined partitions 70i that is the defined partitions, respectively. The control system decides the kind of liquid and controls the object to be controlled so that the decided kind of liquid is sprayed by the spray nozzle 31.