The summary of the planktonic foraminiferal data of two cores from the East China Sea picked up during the Cruise V23/KM92 of the R/V "Akademik Aleksandr Vinogradov" (ROC-Russia Marine Science Collaboration Project) is presented. The assemblage compositions and climatic group ratios are given. The late Quaternary sediment section is divided on the climatic stratigraphy basis. Paleotemperatures of mid-annual surface-water masses are abbuced (on the basis of the scheme established earlier for this region).