A water-drinking device for pets is to obtain a circulating flow of water in a drinking area and comprises a bottom basin where a submerged motor is placed therein and an upper cover combined with a water outlet pipe, wherein at least one water outlet formed at the upper portion of the water outlet pipe must be so arranged that it keeps the same height as or higher than the overflow region of the same area combined with the water outlet pipe. The lower end of the aforementioned water outlet pipe is combined with one end of the submerged motor placed in the bottom basin, so that the water drawn by the submerged motor to the water outlet pipe can be discharged through the upper water outlet and introduced into a preset water-drinking area along the overflow region of the same area, which facilitates formation of a circulating flow of water for pets drinking while saving the electricity consumption.一種寵物飲水裝置，是對為獲有循環流動的水在飲水區域是包含一其間置入一沉水馬達的底盆、及其間允許結合一出水管的上蓋，其中，該出水管靠上形成的至少一出水口必須與結合出水管同一區域的溢水範圍保持等高或較高設置，前述的出水管靠下一端是與置入底盆的沉水馬達一端作結合，以藉沉水馬達引至出水管的水能透過上端出水口外排出即可沿著同一區域的溢水範圍引入預設的飲水區域，以利形成一循環流動的水可在節省電力的情況下達到以作為寵物的飲用。
