A terminal holder for holding the mobile terminal includes the fixed portion and the holding portion. The fixed portion has a fixed surface fixed to the mobile terminal or the terminal case covering the mobile terminal. The holding portion has both ends connected to the fixed portion, and a finger insertion space is defined between the fixed portion and holding portion, and the mobile terminal is held by inserting a finger into the finger insertion space. The finger insertion space fails to overlap with the fixed portion as viewed from a direction perpendicular to the fixed surface of the fixed portion.