An electrical connector has a housing for arranging and holding terminals; and an upper shell and a lower shell formed of a metal plate and attached to the housing. The upper shell and the lower shell extend with a longitudinal direction thereof aligned with an arrangement direction of the terminals. The upper shell and the lower shell are directly connected to each other with solder at both end portions thereof in the longitudinal direction. At least one of the upper shell and the lower shell includes a protruding piece at a middle portion thereof. The other of the upper shell and the lower shell includes a hole portion or a cut portion as a receiving portion for receiving the protruding piece. The housing includes a through space portion for passing the protruding piece, so that the protruding piece is connected to a surrounding portion of the receiving portion with solder.