The invention discloses a debugging device used for a single-head heating rod set. The debugging device comprises a base plate, the base plate is provided with a first adjusting groove and a second adjusting groove, and the first adjusting groove is perpendicular to the second adjusting groove; the outer sidewall of the base plate is provided with a fixed block, an adjusting plate is arranged above the base plate, the adjusting plate is horizontally arranged, one end of the adjusting plate is plugged in the end portion of the fixed block, the other end of the adjusting plate is provided with a positioning plate, the positioning plate is vertically arranged, the face, of the positioning plate, which faces inwards is provided with a rotary disc, a rotating shaft is plugged in the end portion of the positioning plate, the rotating shaft is in threaded connection with the positioning plate, one end of the rotating shaft is connected with the rotary disc, and the outer peripheral face of the other end of the rotating shaft is provided with an outside thread. According to the invention, the rotary disc can control the rotating shaft to achieve rotation, and therefore rotation adjustment can be carried out to the single-head heating rod conveniently, and the single-head heating rod can be observed and debugged conveniently.