Waterway system for sanitation vehicle, control method of waterway system and sanitation vehicle

The invention relates to the technical field of road cleaning equipment, and provides a waterway system for a sanitation vehicle, a control method of the waterway system and the sanitation vehicle. The waterway system for the sanitation vehicle comprises a water tank, a water supply pump, a main water supply pipeline, a main flow control valve, a plurality of water supply branches and a branch flow control valve group. An inlet of the water supply pump can be detachably connected with the first water opening of the water tank, and an outlet of the water supply pump is connected with a main water supply pipeline. And a total flow control valve is arranged on the total water supply pipeline. And each water supply branch is connected with the main water supply pipeline through a main flow control valve. The branch flow control valve bank is installed on the multiple water supply branches and used for controlling the water supply flow of the multiple water supply branches. By means of the structural arrangement,