A circuit structure is provided to which an electronic component can be easily mounted (electrical connection of terminals). A circuit structure that includes a substrate provided with a conductive pattern on one face thereof; a conductive member fixed to the other face of the substrate; an electronic component that has first terminals and of a plurality of terminals, that are electrically connected to the conductive member, and a second terminal of the plurality of terminals that is electrically connected to the conductive pattern provided on the substrate; and a relay member for electrically connecting the second terminal and the conductive pattern provided on the substrate, at least a portion of the relay member being fixed to the conductive member via an insulating material.