A method of producing an optical connecting component in which three-dimensional electric wiring can be easily and accurately performed, and the optical connecting component are provided.A positioning projection 58 disposed on a second slide core 56 for positioning a core pin 54 disposed on a first slide core 55 is fitted in a positioning hole 34 disposed in a lead frame 30. The lead frame 30 is disposed in the vicinity of a lead pattern 31, so that the lead pattern 31 can be insert-molded while being positioned in an accurate position with respect to the second slide core 56. Therefore, it is possible to easily perform three-dimensional electric wiring in an accurate position.