At the beginning of 2008, South China encounters freezing rain disast er which is the most serious freezing rain in the past 100 year. Especially in G uangdong Province, it caused great economic loss and social impact. The results show that this case is associated with La Nina event and anomalous atmo spheric c irculation. The circulation situation of the middle and high levels in Asia and Europe was a pattern of north ridge and south trough circulation pattern and the western Pacific subtropical high was stronger in intensity and northward in pos ition. The cold air moving up against moist s outherly form the Bay of Bengal and the South China Sea produced the lowlevel temperature inversion over South China and the anomalous localmeridional circu lation,which caused the continuous cryogenic freez ing rain and snow weather. When confront the public events that caused by the fr eezing rain, Guangdong Provincial Meteorology Bureau has a good communication w ith the media, authority weather warning information are published in time, whic h has a positive effect in stabilize the popular feelings and society. Rethinkin g of disaster found that the ability of monitoring, evaluating and information p ublishing about freezing rain disaster in mountain area still need to be reinfor ced.