The invention discloses an electric connector assembly which is used for installing a front panel of a computer case. The electric connector assembly comprises different types of electric connectors, an insulating shell, a metal close cover and cables, wherein the electric connectors comprise a USB connector and a voice interface connector, the insulating shell contains the electric connector, the metal close cover covers the insulating shell and the cables are electrically connected to the corresponding electric connectors. The plurality of electric connectors are arranged in a row and can be used for inserting corresponding abutting-joint plugs along an inserting direction, the insulating shell of the electric connector assembly comprises an upper cover and a lower cover, wherein the lower cover is provided with a plurality of containing grooves which have forward openings and are arranged in a row in a lengthwise direction, all electric connectors are contained in the correspondingcontaining grooves along the lengthwise direction, and the cable extends out from the rear end of the insulating shell along a vertical direction perpendicular to the inserting direction. The design is convenient for assembling and maintenance.