In order to ensure the quality of drinking water for rabbits, the water entering the water tank must be filtered in advance (filters can also be added to the water tank) to prevent sand from entering the water dispenser and destroying its sealing performance. As for the volume of the water tank, it depends on the scale of breeding. It should at least meet the needs of 24 hours. Secondly, when installing the drinking water system, the installation position of the water tank is required to be 300-500mm higher than the water dispenser, so that each rabbit cage in the drinking water system can get enough water without causing waste. Thirdly, if the rabbit cages are arranged in multiple layers, if conditions permit, a water tank is required to be configured on each layer, so that the water pressure and water supply of each layer are the same, which is enough to drink without wasting. Experiments show that the height difference between the water surface of the water tank and the water dispenser determines the wat.