A terminal-equipped case member having an external terminal for electrically connecting an external device, which is fixed to a case body for housing an electronic component or a case member constituting a case lid attached to the case body, includes a base material made of metal that forms the case member; the external terminal inserted into a through hole formed through the base material; a sealing material formed of a first resin material that seals a gap between the external terminal and the base material; and a terminal adhesion layer. The external terminal and the sealing member are bonded to each other through the terminal adhesion layer formed of a second resin material with a higher adhesion to the external terminal than that of the first resin material.