An opto-electric hybrid module is provided, which is configured so that no air bubbles are present in a sealing resin which seals a space defined between an optical waveguide and an optical element. In the opto-electric hybrid module, an electric circuit is provided directly on an over-cladding layer of the optical waveguide, and the optical element is provided on predetermined portions (mounting pads) of the electric circuit. The over-cladding layer has a projection which covers a core, and a center portion of the optical element is positioned above the projection with the intervention of a sealing resin.