PURPOSE: To improve connecting accuracy and to enable mass production by manufacturing a plug mounted with an optical fiber and a jack, mounting and joining the plug and jack to prescribed housings and inserting a connecting jig to the connecting groove of the outside thereby fixing the plug and the jack.

CONSTITUTION: A plug mounted with an optical fiber cable 2 and having guide pins 12 and a jack having no pins 12 are manufactured and are mounted in a housing 8. A holding part 9 for holding the cable 2 and a spring 10 for press contact of the plug or jack are provided in the housing 8. The plug and jack are correctly connected by inserting and joining the pins 12 to holes 5 for insertion of guide pins. A connecting material 13 is inserted into a connecting groove 11 on the outside of the housing 8 by which both housings 8 are connected. The optical connector structure which has high connecting accuracy and permits mass production is thus provided.