An electrical connector, used for electrically connecting a chip module to a circuit board, comprising: an insulating body, provided with a plurality of accommodating openings; and a plurality of terminals, correspondingly accommodated in the accommodating openings respectively, wherein each terminal has a connection portion, two sides of the connection portion bend and extend to form a first clamping arm and a second clamping arm, respectively, the first clamping arm and the second clamping arm together clamp a solder material, the first clamping arm has a first upper edge and a first lower edge arranged opposite to each other, and the length of the first upper edge is not equal to the length of the first lower edge. Under conditions of not increasing the length of a metal billet, the length of the first upper edge is increased, and the length of the first lower edge is decreased.