In order to assist Dalian in rapidly developing towards efficient and green aquaculture, the Dalian Aquaculture Efficient and Smart Aquaculture Technology Special Mission has carried out technical promotion work around circular water aquaculture, providing efficient aquaculture technology services for aquaculture enterprises and farmers. On September 29, the mission held a technical training meeting in our company on the hot issues of factory shrimp farming in Lushun, Jinpu New District and other places in Dalian, and invited Professor Sun Jianming from the Institute of Oceanology, Chinese Academy of Sciences, a famous expert, to give a report entitled "Technology and key points of shrimp farming with" clean water "in circulating water". 28 members of the Dalian Aquaculture Efficient and Intelligent Aquaculture Technology Special Mission, scientific and technological personnel, breeders, managers, and professionals from enterprises or industries such as Liaoning Nahai Technology Co., Ltd. engaged in aquaculture and seedling cultivation, as well as scientific and technological personnel from universities, research institutes, and other related majors participated in this training session.