The present invention provides a water container structure, which is a container combination for an animal to drink water and comprises a containing unit, for water to be added, at an upper end and a receiving unit for the animal to drink the water with its mouth at a lower end. A plurality of grooves, spaced up and down, are concaved at two corresponding sides at a predetermined height of the containing unit at the upper end for two projecting portions extending inward at an upside of the receiving unit at the lower end to insert in. A water dispensing amount of the container combination is controlled by installing and screwing the water dispensing device of the containing unit and the upper end on the receiving unit at the lower end by hand to allow to predetermined control of the water dispensing amount.
