Floor scrubber and waterway board thereof

The utility model discloses a waterway board of a scrubber, which comprises a water inlet and a plurality of water outlets uniformly arranged along the linear direction, and the path lengths of circulation channels from the water inlet to the water outlets are equal. In the waterway board of the scrubber, when the waterway board is used, the plurality of water outlets which are uniformly distributed along a straight line are provided with the circulation channels with the same length, so that water flowing in from the water inlets can respectively reach each water outlet by passing through the circulation channels with the same length. Therefore, when the water inlet flow of the water inlet is small, water can be better and evenly distributed to all the water outlets, it is guaranteed that all the water outlets contain water, it is guaranteed that all the water outlets discharge water, and then it is guaranteed that the humidity of different positions of the surface of the rolling brush tends to be consistent