An electrical connector includes a housing which is provided with an installation cavity and a jack. A conductive clamp and a movable member are configured in the housing. The conductive clamp is provided with at least one pair of first clamping pieces and at least one pair of releasing pieces. The first clamping pieces and the releasing pieces extend into the installation cavity. The movable member is capable of moving back and forth along the installation cavity. A conducting wire is capable of passing through the jack and is inserted into one pair of first clamping pieces. The movable member is capable of moving forward along the installation cavity, and abutting on one pair of releasing pieces, to force the releasing pieces and drive the first clamping pieces to open outward, so that the conducting wire is capable of detaching from the first clamping pieces.