A substrate structure includes: a first substrate a second substrate including a front face disposed so as to face a front face of the first substrate, a substrate spacing holding member provided between the front faces of the substrates facing each other, and holds a spacing between the two substrates at a predetermined value a mounted component including a signal wire mounted on the second substrate, the signal wire, including an end portion electrically connected to the second substrate and extending from the substrate to an outside along the front face of the second substrate a through hole provided in the first substrate, the through disposing a projecting part of the mounted component therein and a shielding member being provided on a back face side of the first substrate and covering an entirety or at least a part of an opening of the through hole.