The utility model provides a drawing apparatus for a joint bar in a hand hole of a tunnel, which relates to the field of tunnel construction. Four corners of a substrate (1) are respectively provided with at least one screw hole; each screw hole is connected with an outside thread at the middle part of a pillar bolt (2); two ends of each pillar bolt are respectively provided with a supporting end (8) and a screwing end (3); the central part of the substrate is provided with a joint bar hole (6), and a joint bar locking ring (10) is correspondingly arranged at the upper part of the joint bar hole; two sides of the joint bar locking ring are respectively provided with a limited block; recessed grooves outwardly extending and mutually corresponding are respectively arranged at the lower parts of the limited blocks close to the substrate; the two recessed grooves and the upper parts of the limited blocks form a T-shaped groove (12) toward an opposite side, and the joint bar locking ring is movably arranged in the T-shaped groove. The drawing apparatus provided by the utility model has the characteristics of simple and fast operation, convenient maintenance, strong applicability and the like; and with the drawing apparatus, construction efficiency is substantially improved and cost is saved.