The invention relates to a vase capable of fixing flowers. The vase comprises a vase cover and a vase body; the vase body is an open cylindrical piece, the main view boundary line of the vase body isan inward sunken arc line, and the vase body is a bottle-shaped body with the bottom, wherein the bottle-shaped body rotates one cycle around the center line; and the vase is characterized in that thevase cover is a flower supporting device. According to the vase, the flower supporting device is selected to be arranged at a vase opening of the open vase, thus the different numbers of flowers canbe supported by the vase to a certain extent, the flowers are kept in an upright state to a certain extent and are more attractive, and using is convenient; and the vase and the flowers can be matchedreasonably, and the vase is reasonably used maximally.