The present disclosure provides an electrical connector, which comprises an insulating base portion, a mating portion, a latching portion and a limiting block. The insulating base portion has a front end, a rear end and a top surface; the mating portion extends forwardly from the front end of the insulating base portion; the latching portion is integrally formed to the top surface of the insulating base portion, the latching portion comprises a latching arm and a latching block, a rear end of the latching arm is connected to a rear end of the top surface of the insulating base portion, and the latching arm extends forwardly with the rear end of the latching arm as a fulcrum to form a cantilever structure; the latching block is formed to a front end of the latching arm and protrudes upwardly; the limiting block is provided on the top surface of the insulating base portion and positioned below the latching arm, the limiting block has a top face; a first gap is provided between the top surface of the insulating base portion and a bottom surface of the latching arm, a second gap is provided between the top face of the limiting block and the bottom surface of the latching arm, the second gap is less than the first gap, the limiting block is used to limit a distance that the latching arm is displaced downwardly.