Abstract: Based on statistics of rain records from 8 South China stations amd their association with ENSO for 100 years,the paper investigates into the teleconnection between ENSO and (l)cold air activities in East Asian midlatitudes in late spring and early summer,(2) South China Sea High and the subtropical high ridge,(3) lowpressure systems in the northern Bay of Bengal and (4) monsoon in the Indo china Peninsula; and in general,their influence on the rainfall in South China in March to June. The investigation also encompasses the impact of the teleconnection between the SST for the South China Sea and ENSO on the July-November rain-fall in South China. It is pointed out that the El Nino years are associated with weaker cold air activities in spring and summer in mid-latitude East Asia,lower geopotential heights in the South China Sea,more active low-pressure systems in the Bay of Bengal and southwest monsoon in the Indochina Peninsula. All of these account for less rain than usual in inland South China and more rain on its coast in the El Nino years. These years also see transitions in SST from negative to positive in the South China Sea,bringing relatively heavy rain,even floods,to the South China coast when there are fewer typhoons in the autumns.