The invention discloses a double-track car turnout assembly. The double-track car turnout assembly comprises a main beam, a first fixed frame, a second fixed frame, a first movable frame, and a secondmovable frame, wherein the first fixed frame and the second fixed frame are fixedly connected to the main beam; the first movable frame is connected to the first fixed frame in a sliding manner; thesecond movable frame is articulated with the second fixed frame; multiple segment-type conveying tracks are arranged on the first movable frame and the second movable frame; a first electric push rodfor driving the first movable frame to slide is arranged at one end of the first fixed frame; and a second electric push rod for driving the second movable frame to rotate is arranged on the second fixed frame. Through the sliding of the first movable frame and the rotation of the second movable frame, the butt joint and track transfer of tracks are realized, and the switching of a double-track car conveying line is ensured. The double-track car turnout assembly has an ingenious structure, is precise in positioning, simple in process flow, and low in manufacturing cost, is convenient and reliable to use, and ensures the accurate, safe and stable arrival of a double-track car at the destination.