To provide a substrate for installing equipment facilitating installation of the equipment without damaging a face material, and a substrate attaching structure for installing equipment.

The substrate 1 for installing equipment is used as a substrate for installing equipment on an exterior wall of a building, and comprises a plate having a round hole 1a in the center section. The plate has at least two hooking sections 1b and a gluing section 1c on which a sealing backup member is glued. The hooking sections 1b are individually formed on the same circumference of a circle, and the gluing section 1c is provided between the round hole 1a and the circumference on which the hooking sections 1b are provided.