At present, the active and passive anti-icing/deicing technology for small scale rotorcraft is low in maturity, and it can only rely on its own rotation for ice shedding when ice accumulates under the icing conditions. It is very important to master the ice shedding law and predict the shedding behavior accurately for the design and flight safety of rotorcraft under complex weather conditions. According to the characteristics of low flight height of small scale rotorcraft, the ice shedding test and prediction model of rotor under glaze ice condition are carried out. The effects of different rotational speed, liquid water content (L_w) and median volume diameter (D₅₀) on shedding time and location were investigated. The results show that the shedding time decreases with the increase of rotational speed and L_w, the shedding location gradually moves towards the rotor tip with the increase of rotational speed, and the change of D₅₀ between 20—40 μm has no significant effect on the shedding behavior. Based on the experimental results, an empirical model is proposed which can predict the shedding time and location quickly. The results show that, on the basis of the known shedding data of any two icing conditions, the shedding characteristics in other conditions can be effectively predicted, in which the average accuracy on shedding time is 88.2%, and the average accuracy on shedding location is 84.1%. In the model prediction, a judgment method based on dimensionless ice thickness is proposed for the two ice shapes of the ice shedding section presented in the test. Using this method, the conditions of unknown ice shedding section is predicted, and the average prediction accuracy of shedding time and location is 91.0% and 88.4%, respectively.