Chilling, drought and cold rainy weather are the three major meteorological disasters which, according to productive practice, influence winter cultivation in Guangdong province. The variation characteristics of meteorological disasters in winter cultivation during the two periods of before and after climate warming, which are from 1961 to 1996 and from 1997 to 2015 respectively, have been analyzed in terms of the degree and frequency of disasters. The results for the post-1997 period (after climate warming) show as follows. (1) Moderating chilling and cold rainy weather provide favorable climate condition for the winter cultivation. (2) The frequency of severer chilling has been reducing significantly. The majority of Guangdong areas are with a frequency of less than 30%. (3) The frequency of severer drought has been experiencing an increase. The number of the areas, mainly those of north Guangdong, Chaoshan, Maoming and Zhanjiang, with a frequency of more than 30%, has been increasing. (4) The frequency of severer cold rainy weather is on a significant decreasing. The majority of Guangdong areas are with a frequency of less than 30%.