In order to discuss the effect of ENSO on the cyclone which endanger Guangdong, the relationships between Accumulated Cyclone Energy (ACE) and other variables of the tropical cyclones entering the Guangdong Area and ENSO are analyzed during the period of 1950—2003 by using statistical method. It is found that the response of the tropical cyclones affecting Guangdong to ENSO is very weak in year, and it shows significant seasonal differences. During the months from June to August, positive correlation can be...