This invention pertains to an optical connection component that makes it possible to implement optical-fiber connections with a higher degree of precision than existing technologies. In said optical connection component, the end-face arrangement of a plurality of MCFs on which rotational alignment has been performed is maintained, reducing connection losses due to connections to other components. Also, the MCF layout can be verified via a marker provided on a holding part inside which the plurality of MCFs are held, allowing more precise optical connections.