An electrical connector assembly includes a first connector including a first magnetic element and a number of first contacts, and a second connector including a second magnetic element and a number of second contacts. The first magnetic element and the second magnetic element include a pair of opposite poles located at two ends thereof respectively along a direction perpendicular to a mating direction of the first magnetic element and the second magnetic element. When the first connector mates with the second connector, the poles of the corresponding ends of the first magnetic and the second magnetic element are opposite.