A small-sized card connector includes a base frame being open at an upper side thereof and having a receiving space formed therein for receiving a card inserted from the upper side thereof, a retaining wall formed at a rear end thereof and facing the receiving space, a stop portion formed at the rear end thereof and located above the receiving space, and a first hollow portion formed at the rear end thereof; a plurality of terminals mounted to the base frame, each having an end extending into the receiving space and located at a front section of the receiving space; a limiting member mounted to the base frame and located above a front end of the receiving space; and the springy member mounted to the base frame and located at the front end of the receiving space for generating rebounding resilience working toward a rear end of the receiving space.