A card reader has a contact mechanism (IC contact block) coming into contact with a terminal (IC terminal pattern) of an integrated circuit mounted on a card, detection means (detection switch) for detecting that the card is inserted to a contact position at which the terminal and the contact mechanism are in contact with each other, locking means (locking lever etc.) for fixing the card to the contact position, and control means (CPU etc.) for controlling execution and release of locking by the locking means. As soon as the detection means detects insertion of the card, the control means executes locking effected by the locking means and after that, when the card is not activated in response to activation processing by the integrated circuit, release the locking of the locking means.