The present invention relates to a pet water drinker comprising a drinking seat and a water storage device. The drinking seat comprises a drinking trough, a combined trough and a trough. The water storage device comprises a bottle body and a tubular portion; when the water storage device is coupled to the water tank In combination with the trough, because the siphon principle is used, the inside of the water reservoir is equal to the external pressure, so the liquid in the water reservoir flows through the trough to the drinking trough, so that the liquid level of the drinking trough rises to a certain height; when the drinking trough is After the liquid is consumed by the pet, the liquid level drops, and the water in the water reservoir flows out to fill the drinking tank to maintain a specific liquid level. In this way, the creation can be adjusted from the water supply to the tray with the pressure adjustment, and the pet can be consumed in a natural manner without additional teaching, and is hygienic and avoids noise.本創作係寵物飲水器,包含一飲用座及一儲水器,飲用座包含一飲用槽、一結合槽及一出水槽,儲水器包含一瓶身及一管狀部;當儲水器接合於結合槽,因為利用虹吸原理,儲水器內部與外界壓力相等,因此儲水器內之液體流經出水槽至飲用槽,而使飲用槽的液體液面上升處於一特定高度;當飲用槽的液體被寵物飲用後液面下降,儲水器內的水便會流出填補飲用槽以維持特定的液面高度。藉此,本創作可隨壓力調整從儲水器供液體至盤體,寵物可用自然的方式飲用不需額外的教導,並且保有衛生且避免噪音產生。