PROBLEM TO BE SOLVED: To provide an optical connector for a medical appliance, which is easily attachable/detachable, easily handleable to medical personnel, and surely connectable to another optical fiber.SOLUTION: An optical connector for a medical appliance has a connector body 104 for holding an end ferrule connected to a proximal end of a cable having a built-in optical fiber, a cover member 106 for holding a distal end of the connector body 104 so as to enclose it, and a strain relief 94 connected to a distal end of the cover member 106 and enclosing an outer periphery of the cable 90.SELECTED DRAWING: Figure 10B