The utility model discloses a secondary distribution assembly line, its characterized in that: include: the assembly line line body (1) of merger orthoscopic, a plurality of group's circuit panel interfaces (2) have been inlayed on the assembly line line body (1), the assembly line line body (1) includes two tracks (3) that the symmetry set up, two the inboard bottom of track (3) all is provided with wheel protection groove (4), two the outside of track (3) all is provided with right trapezoid frame (5), the hypotenuse of right trapezoid frame (5) is the working face, be provided with circuit panel interface case (8) in right trapezoid frame (5), be provided with in the circuit panel interface case (8) circuit panel interface (2), circuit panel interface case (8) opening in the working face. The utility model provides a secondary distribution assembly line breaks traditional single technology mode of being responsible for a task until it is completed, solves the long -term production bottleneck of cubical switchboard distribution trade, makes the productivity duplicate fast.