The present invention relates to a polygonal rod in which a columnar body is provided between angled portions of a rod body, the polygonal rod having improved usability by swinging the rod body along a longitudinal direction of the columnar body. The polygonal rod includes four V-shaped longitudinal members (A, B) and a pair of flat-plate-like longitudinal members (C) to form a rod body (F) having a hexagonal shape, and further includes at least a pair of hollow portions (24, 25), in which a columnar body (21) is formed between angled portions (22, 22) of the rod body (F), and a longitudinal direction of the columnar body (21) is along a swinging direction (X) of the rod body (F), to thereby obtain the lightweight and rigid rod body (F).
