To solve a problem that while there are metal flower vases in a quadrangular pyramid shape or the like and there is a structure that is mirror-finished in a frame, just the shadow of light and/or its glossiness is enjoyed and the hue of base such as a desk, a table or a floor surface projected on the mirror surface is enjoyed in such a structure, regarding a conventional metal flower vase.

For the metal flower vase, a plurality of plate materials in a strip shape provided with a narrowed part on the center part are manufactured and the plurality of plate materials is twisted to attain such a structure that the twist at upper and lower side end parts is roughly 100 to 110. The left and right side end parts in the longitudinal direction of the plurality of twisted plates are successively bonded to constitute the outer shell body of a twisted polygonal flower vase. A bottom plate and a top plate are respectively welded on the upper and lower sides of the outer shell body of the twisted polygonal flower vase, the outer shell body is mirror-finished, and an opening is provided on the center of the top plate.