An optical connector with memory function comprises memory function for storing respective identification information in order to readily and exactly perform separate control of respective control steps and further to obtain convenient handling of connectors. The optical connector with memory function 3 of the present invention is characterized by a memory function capable of untouchably performing, from outside thereof, writing-in and reading-out of necessary information. The memory function has a structure mounted on or mountable on the outer construction of a housing accommodating therein the optical connection portion of an optical connector plug in the optical connector with memory function.