An electronic connector includes a circuit board, an upper spacer, a lower spacer, and a front frame. The circuit board having a front segment that is provided with contact pins is formed with at least one first positioning hole. The upper spacer and the lower spacer are coupled to the circuit board through the first positioning hole from above and below, respectively, so that the circuit board is sandwiched between the upper and lower spacers. The front frame has a through opening and is mounted around the front segment so that the front segment of the circuit board, the upper spacer, and the lower spacer are jointly received in the through opening of the front frame. Thereby, the upper and the lower spacers are positioned between the circuit board and the front frame for preventing electrical contact therebetween.