A biometric-electronic key system includes an electronic key that stores an electronic key ID and a communication peer that is capable of performing wireless communication with the electronic key ID. A non-accomplishment notification unit presents the user with a non-accomplishment notification of the biometric authentication when the biometric authentication cannot be accomplished. A key operation authentication unit executes authentication corresponding to an electronic key operation performed by the user in response to receipt of the non-accomplishment notification. An actuation permission unit permits actuation of the device even when the biometric authentication cannot be accomplished as long as the authentication performed by the key operation authentication unit has been accomplished.