Abstract: A card connector for receiving a card includes an insulating housing, a plurality of conductive terminals received in the insulating housing, an ejection mechanism and a shielding shell covered on the insulating housing. The insulating housing defines a guiding groove. The ejection mechanism assembled in the insulating housing includes a sliding block, an elastic element and a guide pin. The sliding block has a base body, a sliding body extending sideward from one side of the base body for ejecting the card out, and a locking body extending frontward from a root of the sliding body and spaced from the one side of the base body to define a positioning passage therebetween for guiding the card to enter the insulating housing, a guiding block protruded at a bottom of the locking body to be slidably located in the guiding groove to guide the slide of the sliding block.