The relationship is analyzed of January Kuroshio Region SSTA with summer precipitation in China and general circulation over East Asia.Results indicate that in the higher(lower)Kuroshio SSTA years,the blocking highs over the Ural mountains and Yakutsk become stronger(weaker),the low pressure trough between the two blocking highs turns deeper(shallower).At the same time,the Western Pacific subtropical high strengthens and stretches westwards(withdraws eastwards)and the Asian summer monsoon is obviously stronger(weaker).As a result,the confluence region of the cold/dry air from mid-high latitudes and the warm/wet air from the west of subtropical high locates at the mid-lower reaches of the Yangtze River(North China)and the summer rainfall in the above districts increases(decreases)correspondly.