A card connector includes an insulating housing defining a receiving room for receiving a card, a plurality of electrical terminals disposed in the insulating housing and each having a contact portion stretching into the receiving room for electrically contacting a corresponding contact trace of the card, and a monitoring member having a base plate disposed in the insulating housing, a monitoring arm extending along the insertion direction of the card, and a connecting arm connecting the monitoring arm to the base plate. The connecting arm is inclined upward to make the monitoring arm stretched into the receiving room. Both the monitoring arm and the contact portion of one corresponding electrical terminal are aligned with each other along the insertion direction of the card for electrically contacting one same contact trace of the card so as to monitor whether the card is fully inserted in the card connector or not.