PURPOSE: A multi-core optical connector is provided to prevent the movement of a sleeve without using a sleeve holder and easily remove terminus inserted into a receptacle insert body. CONSTITUTION: A plug insert body(200) and a receptacle insert body(100) are formed with a matching structure in a multiple core connector. Terminuses(34,34a) are inserted into the plug insert body and the receptacle insert body. A plug body(202) and a receptacle body(102) surround the plug insert body and the receptacle insert body. The multi-core optical connector is formed by combining the plug body with the receptacle body. The receptacle body is composed of a front body, a middle body, and a rear body.
