The invention discloses a frictional resistance calibrating device aiming at liquid crystal coating, and relates to a model surface friction measurement field of a wind tunnel test. The frictional resistance calibrating device comprises a glass disc, an outer cover, a tray, a measuring bench, a base, a fixed pulley, and a weight. The base is a disc mechanism, and is horizontally disposed on the lowest end. The measuring bench is fixedly disposed on the upper surface of the base, and the tray is fixedly disposed on the upper surface of the base. The glass disc is fixedly disposed on the upper surface of the tray, and the outer cover is fixedly disposed on the upper surface of the tray. The outer edge of the glass disc is fixedly by the outer cover in a limited way, and the fixed pulley is fixedly disposed on the edge part of the base. The weight is fixedly connected with the outer cover side edge by an inelastic rope, which is disposed on the fixed pulley. By using the frictional resistance calibrating device, results are acquired directly without help of other sensors, and the measurement results are not affected by the precision of the sensors, and then loading is easy to adjust and control, and the calibration precision is improved. The frictional resistance calibrating device has advantages of small device size, simple structure, high maintenance performance, economy, and practicability.