An electrical connector includes an insulating housing, a plurality of conductive terminals fastened to the insulating housing, and a shielding element surrounding the insulating housing. The insulating housing has at least one docking surface. Each of the plurality of the conductive terminals has an extending portion. A surface of the extending portion of each of the plurality of the conductive terminals forms an insulation layer. The shielding element has a base body. At least one portion of a front surface of the base body protrudes frontward to form at least one sealing board attached to a rear of the at least one docking surface. The insulation layer of the extending portion of each of the plurality of the conductive terminals is exposed to the at least one docking surface, and is adjacent to and projects beyond a front surface of the at least one sealing board.