A bidirectional duplex electrical connector includes: a circuit board provided with two sets of circuits; a base seat; and a tongue, top and bottom surfaces of the tongue are top and bottom flat surfaces, each of the top and bottom flat surfaces is provided with a connection interface, and each of the two connection interfaces includes one row of electrical connection points, wherein the tongue and the base seat are integrally formed together, and the two rows of electrical connection points are respectively arranged and exposed, and in flat surface contact with and fixed to and only provided on front sections of the top and bottom flat surfaces of the tongue, wherein the tongue and the base seat covers top and bottom surfaces and two side surfaces of the circuit board.