To align and fix coated optical fiber and single optical fiber one by one by providing a first guide means for the insertion side of multiple optical fiber, guiding the coated optical fibers while being spread in the direction being away from each other, providing a second guide means in the insertion side of the single optical fiber end guiding the single optical fibers to the coated optical fiber.

The UV cured coated optical fibers 10 are inserted into a tape fiber insertion hole 23 is an arranged state. At that time, the fibers 10 are naturally separated when they are inputted to the respective coated optical fiber housing parts in a main body 2. Thus, the fibers 10 are away from each other by continuing insertion. Since the bending of the fiber 10 is gentle, insertion can smoothly be executed. A tape coating 8 is abutted on the trailing end of the coating storage part. When the respective single optical fibers 6 are inserted into single optical fiber insertion hole 24 one by one, bare fibers 11 are abutted on the bare fibers 13 of the fibers 10. A cap 26 is engaged into a cap hole 25 and the bare fibers 11 and 13 are pressed from above.