Abstract: Embodiments of the present invention relate to apparatus and method for detecting a card connection status. An apparatus for detecting a card connection status is disclosed. The apparatus comprises a switch component operable to change an electric connection status with a contact terminal of a card connector responsive to a change of a connection status between a card and the card connector; a detection circuit operable to generate a detection signal indicating the electric connection status between the switch member and the contact terminal; and a controller operable to determine the connection status between the card and the card connector based on the detection signal from the detection circuit. The corresponding method, detection circuit, and card connector are also disclosed.