Abstract: The ralationships between the monsoon rainfall and the sea-surface temperature (SST) in the Equatorial Eastern Pacific are examined based on the thirty-eight-year (1951-1988) data set of sea level pressure maps in the Northern Hemisphere and the rainfall of 160 stations over China in summer (June-August) and winter (Dec.-Feb.).The study shows predominance of the years, in which the monsoon rainfall does not in accordance with the SST year to year. However, the SST anomaly takes a role which can not be ignored in examining the interannual variability of monsoon pressure field over East Asia and the monsoon rainfall in China.

Key words: monsoon rainfall, E1 Nino, sea level pressure field