Abstract: In this paper,studies are made of the East Asian witer monsoon intensity and its relation to the summer 500hPa atmospheric circulation and the large-scale climate anomaly in China by using the East Asian winter monsoon intensity data for the period of 1951—1990. It is found that in the years with a weak winter monsoon,there exists a positive-negative-positive anomalons distribution. It is a weak EAP telecorrelation pattern at 500hPa in summer that extends from the South China Sea,the Philipines through the Yellow Sea,the ho of Japan and the Sea of Okhotsk. This anomalous distribution causes increases of rainfall over the the reaches of Yantze and Huaihe Rivers and decreases of rainfall in South and North China during the summer time. It is also shown that in the past 40 years the interdecadal change of summer rainfall ovet the above two river reaches is closely related to that of the winter intensity in ptevious years.