An electrical plug connector includes an insulated housing, a metallic shell, two terminal sets, and a circuit board. The insulated housing includes a front portion and a rear portion. The front portion extends forwardly from the rear portion, and an inside of the front portion forms a receiving cavity. The metallic shell covers the insulated housing. Each terminal set is composed with a plurality of terminals. Each terminal includes a contact portion, a retaining portion, and a soldering portion. The retaining portion is retained in the insulated housing. The soldering portion extends backwardly from the retaining portion. The soldering portions are arranged as an upper row and a lower row in symmetry, and the soldering portion is of the spring arm type. The circuit board is inserted between the upper row and the lower row of the soldering portions. The upper row and the lower row of the soldering portions clip elastically the circuit board.