On the basis of study overview of SU Jilan, YUAN Yaochu and GUAN Bingxian, the recent study advances on the Kuroshio in the East China Sea(ESC) and currents in the region east of Ryukyu Islands are reviewed, especially since 2000 years.The most interested problems awaiting solution in the ESC are as follows: the structure variability of the Kuroshio main part, the Kuroshio intrusion northeast of Taiwan and southwest of Kyushu, meso-scale eddies on both sides of Kuroshio and so on. Study of east of Ryukyu Islands is concentrated on the Ryukyu Current, anti-cyclonic warm eddies and cyclonic cold eddies east of the Ryukyu Current. From the above analysis, finally, the author put forward some problems to be further studied.
The west current of the Pacific-Kuroshio has an important influence on the climate and environment of the Chinese coastland.This paper summarizes recent studies on the Kuroshio in the source region.The transportation, direction, formation and dynamic mechanism of the Kuroshio in the Luzon Strait are described in detail. However, The formation of the Kuroshio here is still unknown clearly, authors suggest using nonlinear method to solve this controversy.