The present invention is an automatic water supply device for pets, including a body whose top end is recessed to form a housingThe groove, and the bottom side of the main body is provided with a connecting part, and a water outlet hole is formed in the connecting part to communicate with the containing groove； a pipe has a stop at one end, and a steel ball is provided in the pipe body to slide down And it is stuck to the stop part and will not fall out； and a water inlet has a buckling part located around the periphery, and the water inlet is provided to buckle on the accommodating groove, and the top and bottom ends of the water inlet each form a container The hole and a water inlet, and the accommodating hole and the water inlet have mutually connected accommodating holes and water inlets； the bottom of the accommodating hole of the water inlet is provided with a vent hole； it is used to form the drinking water and form the inside and outside The pressure difference can make drinking water flow down into the pipe quite smoothly, which is quite practical.本發明一種寵物自動給水裝置，包括一本體之頂端凹設形成一容置槽，另本體之底側則設有一接管部，接管部內形成一與容置槽互相連通之一出水孔；一導管具有位於一端的一止部，另設有一鋼珠於其管體內可以向下滑動並卡抵於止部不會掉出；及一入水器具有位於外圍環圍的一扣抵部，而提供入水器扣抵在容置槽上，且入水器之頂端、底端各形成一容孔部及一進水部，而其容孔部及進水部具有互相連通之容孔及進水孔；入水器之容孔部底端另設有通氣孔；用以形成飲用水會形成內外壓力差，可以使得飲用水相當順暢地向下流至導管內，相當具有實用性。
