The ocean is a strategic place for high-quality development. This year, the No. 1 central document of the Central Committee proposed to build modern marine ranches, develop deep-water cages, breeding boats and other deep-water and offshore aquaculture. The work report of Guangdong Provincial Government clearly requires that "vigorously develop marine ranching and deep sea aquaculture" as a new starting point for the development of marine economy. At present, Guangdong is speeding up the construction of modern marine ranching, focusing on cultivating trillions of modern marine ranching industrial clusters, and creating a new growth pole of "high-quality development project for hundreds of counties, thousands of towns and thousands of villages". Build up the whole chain of modern marine ranching industry Guangdong is rich in marine fishery resources, and has built a whole chain of modern marine ranching industry from seed industry, breeding, equipment to intensive processing. In recent years, Guangdong has vigorously implemented the "Guangdong strong seed core" project and cultivated a number of marine dominant fish species, such as golden pomfret, sea bass, military cao, grouper, Miichthys miiui, octopus and other high-quality and high-value modern marine ranch breeding excellent varieties. According to the introduction of the Provincial Department of Agriculture and Rural Affairs, Raoping County, Chaozhou City is accelerating the construction of the first batch of projects of modern marine ranch - the improved seed farm of sea bass on the shore. After the completion of the project, it will cultivate up to 300 million high-quality sea bass seedlings every year, which will enable our province to completely break away from the external dependence of sea bass breeding seedlings and provide a solid seed guarantee for the high-quality development of modern marine ranch in our province. Guangdong is located in a tropical and subtropical climate, which is suitable for marine fish cultivation all year round. According to the data, in 2022, Guangdong's mariculture output will reach 3.36 million tons, including 780000 tons of fish, 720000 tons of crustaceans, 1.78 million tons of shellfish and 60000 tons of algae. The construction of modern marine pasture cannot be separated from the support of breeding equipment. Guangdong is the first to start the deep-water cage culture in China, and the first to realize the localization, development, promotion and application of deep-water cage equipment. The overall level of aquaculture equipment is leading in China. For example, high-end scientific research units such as the South China Sea Fisheries Research Institute of the Chinese Academy of Fishery Sciences, the Guangdong Provincial Laboratory of Southern Marine Science and Engineering (Zhanjiang), the Guangzhou Energy Research Institute of the Chinese Academy of Sciences, and the 605 Research Institute of China Shipbuilding Corporation (Guangzhou Ship and Marine Engineering Design and Research Institute) have gathered, breaking through technical difficulties such as wind and wave resistance. It is worth mentioning that the truss aquaculture cage "Dehai No.1" developed and designed by the South China Sea Fisheries Research Institute of the Chinese Academy of Fishery Sciences is the first aquaculture fishery in the world that has experienced the inspection of a 17-magnitude typhoon and ensured safety. Let "one fish" produce "multiple fish" value and build modern marine pasture is a new field and new track. The conference on the construction of modern marine pastures in Guangdong Province held recently pointed out that as long as we fully mobilize the enthusiasm of all parties, continue to work hard for one year, two years, five years and ten years, and promote the development of the whole industrial chain of breeding, intensive processing, breeding feed, logistics and transportation, equipment manufacturing, culture, tourism and health care, we can create a new trillion-level industry, and let "one fish" produce the value of "multiple fish". In addition to introducing more modern marine ranch prefabricated vegetable products, the combination with biotechnology is an important direction and frontier field of marine products intensive processing. To this end, Guangdong proposed to widely apply in marine health food, cosmetics, biomedicine and other fields to create new growth