To provide a flower vase which can be used easily and simply in the home and by hospital patients.

When a plate-like frog 4 is placed on a projection fitted to the inside of a large flower vase, a small flower vase 1 or a pot is placed to be used as a two stage type large and small flower vase. If a pot is placed, it is used as an ornament, and if a plate-like frog 4 is set in a large flower vase 3 and water is poured, flowers can be arranged. The stems of the flowers can be put in the large and small holes of the plate-like frog 4 to be fixed, and in the case of using artificial flowers and dried flowers, the plate-like frog can be used. As the frog can be removed, the small flower vase 1 can be washed simply, and even if the small flower vase is a small and shallow case, the frog is provided to simply arrange the flowers.