An optical coupling component for use in a two-way optical communication connector comprising: a columnar sending side optical functional section; a columnar receiving side optical functional section; and a joint section, wherein said sending side and receiving side optical functional sections and said joint section are made integral together from optically transparent synthetic resin material, and formed so that both the optical functional sections are disposed in parallel to each other and jointed to each other by the joint section in forming a pair of columnar light guide members (81, 82) and a joint member, respectively; said joint member has a body portion extending between the two light guide members (81, 82), and opposite end portions (91, 91'), of which each is joined to a respective one of the two light guide members (81, 82) with a contact region (91a, 91a') between each end portion (91, 91') and the respective light guide member being a part of the circumferential surface of the latter; and each of said contact regions (91a, 91a') has a length in the circumferential direction of the respective light guide member that is equal to or smaller than half the circumference of the light guide member, characterized in that when a plane including the axes of both light guide members (81, 82) is defined as a horizontal plane, the direction perpendicular to this plane is defined as a as a vertical direction, and a straight line is a line extending between the sides of said two light guide members (81, 82) that have the greatest vertical distance from a horizontal first edge of said body portion, said straight line is at a level between a level of the first edge of said body portion and a level of a second edge of said body portion opposite to said first edge, and said body portion has a generally V-shaped or U-shaped notch (93, 93') in a horizontally central portion thereof, the notch (93, 93') extending vertically from said first edge towards said second edge with the apex of the notch (93, 93') being at a level having a vertical distance from said first edge greater than that of said straight line. a columnar sending side optical functional section; a columnar receiving side optical functional section; and a joint section, wherein said sending side and receiving side optical functional sections and said joint section are made integral together from optically transparent synthetic resin material, and formed so that both the optical functional sections are disposed in parallel to each other and jointed to each other by the joint section in forming a pair of columnar light guide members (81, 82) and a joint member, respectively; said joint member has a body portion extending between the two light guide members (81, 82), and opposite end portions (91, 91'), of which each is joined to a respective one of the two light guide members (81, 82) with a contact region (91a, 91a') between each end portion (91, 91') and the respective light guide member being a part of the circumferential surface of the latter; and each of said contact regions (91a, 91a') has a length in the circumferential direction of the respective light guide member that is equal to or smaller than half the circumference of the light guide member, characterized in that when a plane including the axes of both light guide members (81, 82) is defined as a horizontal plane, the direction perpendicular to this plane is defined as a as a vertical direction, and a straight line is a line extending between the sides of said two light guide members (81, 82) that have the greatest vertical distance from a horizontal first edge of said body portion, said straight line is at a level between a level of the first edge of said body portion and a level of a second edge of said body portion opposite to said first edge, and said body portion has a generally V-shaped or U-shaped notch (93, 93') in a horizontally central portion thereof, the notch (93, 93') extending vertically from said first edge towards said second edge with the apex of the notch (93, 93') being at a level having a vertical distance from said first edge greater than that of said straight line.