To provide a card connector capable of guiding smooth attachment and detachment of an IC card and achieving low height of an IC card connector.

When a SD card is loaded on a card housing part 12A, a second lock part 10fb of a lock member 10FA is unlocked, and when the SD card is further inserted, a first lock part 10fa unlocked of the lock member is pushed up from between the locking step part 16e of a slide block 16 and the inner peripheral part of a side-wall 12RW by the end part of the SD card in a traveling direction thereof and is sled from an entry position to a waiting position in the side wall by further pushing the SD card after the end part of the SD card in the traveling direction thereof is contacted with the guide surface 16Sa of the slide block. When another card is loaded on the housing part 12A, the end part of the inserted another card in a traveling direction thereof is guided to a normal position toward a contact terminal 18ai by the guide surface of the locked slide block and a guide surface 16Sb.