An illuminating sterile drinking device for pets, comprising: a water tank with a water inlet, wherein an L-shaped barrier is provided in the water tank partitioning a chamber inside the tank into a water storage chamber and a filtering chamber, and a drinking trough projects from the outside wall at the front of the water tank and is in communication with the water storage chamber a spout is installed on the front wall of the filtering chamber in the water tank a UV sterilising device with a water level controller is provided in the water storage chamber and has a water inlet and a water outlet and a water pump is provided in the water storage chamber and has a pump-in port and a water discharge port, the pump-in port being connected to the water outlet of the UV sterilising device, and the water discharge port being connected to a water pipe which passes through the L-shaped barrier to connect the filtering chamber and also comprising a water storage bucket. The device circulates the drinking water using the water pump and keeps the drinking water for pets fresh by means of UV sterilisation and filtering. By illuminating the water flow and releasing the water into the trough, the device attracts pets to drink, and the device has the functions of automatic water filling and of protection against water and electricity stoppage, so that the device can be used conveniently and safely.Linvention porte sur un dispositif de boisson stérile éclairé pour animaux de compagnie, lequel dispositif comprend : un réservoir deau muni dune entrée deau, dans lequel réservoir une barrière en forme de L est disposée dans le réservoir deau, divisant une chambre à lintérieur du réservoir en une chambre de stockage deau et une chambre de filtration, et une auge de boisson faisant saillie à partir de la paroi externe à lavant du réservoir deau, et étant en communication avec la chambre de stockage deau un bec verseur étant installé sur la paroi avant de la chambre de filtration dans le