Abstract: Application of seeding net refrigeration is very useful to increase the production of laver and farmers' income in our province. In 2019, Quanzhou Fisheries technology station explored the application of seeding net refrigeration technology in the cultivation process of Porphyra haitanensis in natural sea area, and analyzed the quality of the products. The results showed that the yield of the first crop of Porphyra increased by 111.11% compared with autumn seedling net. Further quality analysis showed that the content of 16 kinds of amino acids in the first crop of laver applied seeding net refrigeration technology, was significantly higher than that of autumn seedling net, increased by 38.98%. The content of chlorophyll-a, phycobiliprotein and crude polysaccharide was slightly lower than that of autumn seedling net, but the difference was not obvious. The application of seeding net refregeration technology can not only increase the yield of the first crop of Porphyra haitanensis, but also the quality of Porphyra haitanensis does not decline significantly. Therefore, it can become as an important means to increase the yield and farmers’ income in Porphyra haitanensis cultivation.