The invention discloses an electric connector, which comprises an insulating body and a plurality of conductive terminals. The insulating body comprises a body part and a tongue plate protruded and extended forwards from the body parts into a splicing opening. The conductive terminal comprises a first terminals and a second terminal arranged on the tongue plate. The first and second terminals areprovided with a contact part and a welded part respectively. The conductive terminal comprises grounding terminals and differential signal terminals. The first terminal comprises a first power terminal. The second terminal is positioned between the power terminal and the grounding terminal. Therefore, the arrangement of the welded parts of the first and second terminals is improved, and the signal transmission quality of the electric connector is improved.