PROBLEM TO BE SOLVED: To provide a waterer for pets that can prevent the retention of dust.SOLUTION: An automatic circulating waterer for pets according to the present invention includes: a water storage chamber 20 in the front side and a pump chamber 23 in the rear side in a water bowl 1 a mild-slope channel 21 in the front side in the water storage chamber 20, the mild-slope channel 21 having an approximately arc shape in plan view along the front circumferential edge of a surrounding wall 12 of the water bowl 1 a draining zone 22 inside the mild-slope channel 21 an overflowing part 31 above the pump chamber 23 and a steep channel 35 ranging from the overflowing part 31 to one end of the mild-slope channel 21 and inclined downward toward the mild-slope channel 21. Water W in the pump chamber 23 is pumped up by a lift pump 26 to the overflowing part 31, flows through the steep channel 35, the mild-slope channel 21 and the draining zone 22, and is then introduced to the pump chamber 23.SELECTED DRAWING: Figure 1
