The invention discloses a rotary teaching calligraphy writing posture correcting device, and relates to the field of writing brush calligraphy teaching. The rotary teaching calligraphy writing posturecorrecting device comprises a fixing frame, a fixing device, a tray, a turntable, rotating shafts, rotating wheels, a supporting tube, a supporting rod and a bracket; the fixing device and the tray are arranged on the fixing frame; the turntable is arranged on the tray; the rotating shafts, the rotating wheels and the supporting tube are arranged on the turntable; the supporting rod is arranged on the supporting tube; the bracket is arranged on the supporting rod; the fixing device includes a knob, a connecting shaft, a clamping block, a limiting ring, a connecting ring, a fixing plate and ananti-slip layer; the knob, the clamping block and the limiting ring are arranged on the connecting shaft; the connecting ring is arranged on the limiting ring; the fixing plate is arranged on the connecting ring; and the anti-slip layer is arranged on the fixing plate. The rotary teaching calligraphy writing posture correcting device is good in practicability, is very easy to use, can correct a posture of a beginner in calligraphy writing, can make the beginner of the calligraphy maintain the correct posture during writing, is flexible and easy to rotate, does not make the students feel uncomfortable during writing, is convenient to detach, and facilitates carrying and storage for schools or individuals.