A card connector includes an insulating housing, a detection terminal, and a shielding shell. The insulating housing defines a card-receiving cavity in a top surface thereof and a channel at a rear portion of a side thereof to communicate with the card-receiving cavity. The detection terminal is mounted to the side of the insulating housing, and has an elastic portion deflected inwardly to enter the card-receiving cavity and a detection portion formed at a free end of the elastic portion. The shielding shell is covered on the insulating housing, and has a flexible strip deflected inwardly to be located at the channel outside the detection terminal. When an electronic card is fully inserted into the card-receiving cavity, the electronic card presses against the detection portion and make the elastic portion deflect outwardly to electrically contact with the flexible strip.