The rod clamp includes a retaining portion that is curved so that a portion of the outer periphery of a fishing rod contacts with the retaining portion, a first fixing portion and a second fixing portion that are respectively arranged on both sides of the retaining portion, and release portions that are formed in both sides of the outer peripheral surface of the retaining portion so as to be adjacent to the first and second fixing portions. Each of the first and second release portions defines a through hole on the outer peripheral surface of the retaining portion.