A multi-as-one card connector having anti-misplug and single card inserting functions comprises a base; a plurality of terminal groups; two swinging stoppers respectively having a swinging arm arranged at the forepart position of both sides of the base and near to one side wall as a one end swinging mode, and lateral extending a baffle to the base interior at the other end, wherein the spaced distance of the two swinging arms is enough long to be subjected to a simultaneous action of a wide card front edge, and not subjected to the simultaneous action of a narrow card front edge, and the spaced distance of the two baffles is smaller than the width of the narrow card; a elastic component arranged between the swinging stopper and the base; and a casing locally coating the base. Thereby the invention can have single card inserting and anti-misplug functions.