The embodiments of the present disclosure provide an electrical connecting assembly and an electrical connector. The electrical connecting assembly comprises two electrical connecting parts and a connecting part. Each of the electrical connecting parts comprises a main body comprising an electrical contacting component. The connecting part comprises a securing component. Two sides of the connecting part extend toward one direction and are connected with the two electrical connecting parts. The two electrical connecting parts are disposed symmetrically across the connecting part. A first electrical connector head comprises an electrical plugging member and the electrical connecting assembly assembled to the electrical plugging member. A second electrical connector head comprises an electrical connecting notch in which the electrical plugging member having the electrical connecting assembly is assembled. The electrical contacting component of the electrical connecting assembly abuts against two inner sidewall surfaces of the electrical connecting notch.