To sufficiently appeal the beauty as goods to the customer by respectively supporting right and left fins in which a pair of stays are erected on a flat plate base part and which are fitted to a back side of a surf board, and a fin fitted in the vicinity of a tail part by first and second supporting means.

In a metallic weight W of flat plate shape, a pair of metal bars R are welded to a back side of the weight W so that the space between the metal bars is slightly widened toward the end in the prescribed direction. A pair of corresponding metal pillars P are welded to a pair of metal bars R approximately parallel to each other in the prescribed direction so as to be erected in a slightly inclined manner. In a tri-fin surfboard stand S of this structure, a side fin F1 fitted to a bottom surface of a surf board Sb is hooked on a first fin supporting means at the position outside the pillar P, and a tail fin F2 is hooked to a second fin supporting means Y between a pair of metallic support bars to lean the surf board Sb thereon.