To simplify improvement of strength against a compression load and an eccentric load.

A connecting rod 1 made of a metallic plate is formed such that press-molded connecting rod constituting plates 2 and 2 having two end parts in which bearing holes 4 and 5 are respectively formed are arranged back to back. Caulking parts 11 to interjoin the two connecting rod constituting plates 2 and 2 are arranged in a plurality of spots in a. longitudinal direction of a leer part 3 between the two bearing holes 4 and 5. The caulking part 11 forms a fit-in part between half-die cut parts 13 and 13 pressed at the two connecting rod constituting plates 2 and 2.