The present invention relates to a fender, which is used as cushioning material mainly at the time of a ship being moored, and a management system thereof. A transponder is mounted in a fender 1 that is an object to be managed, and an ID code is read by the transponder in the fender 1 being accessed by terminals 2A through 2D provided in areas where are areas to be managed and each have one or more terminals. Historical information showing an installed place and an installed period of the fender 1 and individual update information including the ID code is transferred to a control system 4 through communication networks 6A through 6D. The control system 4 not only stores manufacturing information and historical information of all the fenders 1 that are objects to be managed, but also updates the historical information on the basis of the individual update information received from the terminal 2. Furthermore, the control system 4 displays the manufacturing information and historical information of a specific fender 1 designated by an operator. Thereby, it is possible to perform management of fenders, installed in being dispersed, in real time.