Referring to FIG. 1 to FIG. 5, when the electrical connector 100 is assembled, the main portion 11, the plurality of the conductive terminals 20 and the at least one ground terminal 30 are assembled to the shielding element 40 to which the tongue portion 12 is fastened. The base portion 13 of the main portion 11 covers and seals a rear end of the shielding element 40. A front of the main portion 11 is received in the first receiving chamber 411. The tongue portion 12 is fastened to the front of the main portion 11. The connecting portion 14 is received in the first receiving chamber 411. The two buckling blocks 17 are buckled in the two buckling grooves 412, respectively. A free end of the touching portion 302 of the at least one ground terminal 30 abuts against an inner surface of a wall of the first receiving chamber 411 of the receiving chamber 46. Free ends of the upper touching portions 312 of the two upper ground terminals 31 abut against an inner surface of a top wall of the first receiving chamber 411 of the receiving chamber 46. Free ends of the lower touching portions 322 of the two lower ground terminals 32 abut against an inner surface of a bottom wall of the first receiving chamber 411 of the receiving chamber 46.