On the 17th -19th of October 2023 Qingdao (China) has hold long-awaited conference - the sixth China-Russia Bilateral Workshop, which was organized between the Institute of Oceanology Chinese Academy of Sciences and the A.V. Zhirminsky National Scientific Center of Marine Biology Far Eastern Branch, Russian Academy of Sciences. The reason of long-awaited conference is that the cooperation of two major Institutes for studying ocean biology was interrupted with pandemic (Covid-19) and administrative instability for the last few years. In that time, when the Director of NSCMB FEB RAS, corr. member of RAS Igor Yu. Dolmatov had got his work after election and approval of the Ministry of Education and Science of the Russian Federation. Igor Yu. Dolmatov set a goal before International Department to bring the cooperation to a new level and to achieve significant breakthrough in cooperation with scientific and educational institutions of China. The previous joint Workshop between the IO CAS and the NSCMB FEB RAS was in 2019 (the first one was in 2007, all workshops are conducted according with Agreement of Cooperation).