A connector mechanism for a card, capable of being thinned, and a card adaptor having a connector mechanism for a card. A connector mechanism for a card, having an installation section (2a) in which a card (1) having external connection sections is installed and having a terminal member (9) with which the external connection sections of the card (1) can come into contact. The mechanism further has a lift-up mechanism including a projection section (2b) that once lift a front end section (1a) of the card (1) upward and then causes each of the external connection sections of the card (1) to be in contact with a corresponding one of the terminals (9a-9c) of the terminal member (9).