The invention provides a novel smart testing junction box. The junction box comprises an insulating base and multiple groups of wiring terminals, wherein each group of wiring terminals comprise a wiring conductor arranged in the insulating base, a wiring jack formed in the end part of the wiring conductor, a plurality of crimping screws and a short contact tag which is detachably connected betweenthe two crimping screws; a wiring through hole which is used for connecting the end part of a conductor and exposed from the wiring jack is formed in the insulating base; the short contact tag is positioned outside the insulating base; the end parts of the crimping screws are in threaded connection with the wiring conductor and electrically conducted; each group of wiring terminal further comprises a connecting conductor arranged on the joint of the crimping screws and the short contact tag, the end, far from the wiring conductor, of the connecting conductor extends out from the insulating base, and is contacted with the short contact tag; the other end of the connecting conductor is contacted with the wiring conductor; and the connecting conductor and the short contact tag are locked bythe crimping screws to ensure the contact stability between the wiring conductor and the short contact tag, and the circuit break phenomenon between the wiring conductor and the short contact tag canbe effectively avoided.