In the context of the temperature data at 160 stations(1951-01-1999-12) in China and the sea surface temperature(SST) data(1950-01-1998-12),the correlation coefficients between the summer temperature's standardization anomaly of Jiangnan and the global SST anomaly from previous January to this year's December are calculated.Results reveal that there is a higher correlation coefficient sea area in the middle of the tropical Atlantic ocean,its SST in previous October to this year's February significantly influences the next summer temperature anomaly in Southern China.