Abstract: Using the monthly mean and minimum temperature data of the 36 observation stations in Guangdong, the climatological features of the temperatures have been analyzed, including characteristics of trends,abrupt changes and periods. And the possible affect factors on the winter warming in Guangdong have been discussed. The results show that the winter temperatures,particularly the monthly mean minimum temperatures in Guangdong,have a warming trend. The rise of the winter minimum temperatures in Guangdong began in the second half of 1960's and the warming was more evident since the 1980's.