An optical touch panel of the present invention is capable of protecting a core 12 from outside light 17 without increasing a thickness in a frame portion by providing a concave portion 14b on an over-cladding layer 14 in an optical waveguide 10 to fit the concave portion 14b into a frame body 15 of the optical touch panel. In the optical touch panel of the present invention, alignment precision of the optical waveguide 10 is improved to easily obtain a high transmission efficiency because the optical waveguide 10 and the frame body 15 are integrated.