My main research interests cover aquatic animal pathology, aquatic pathogenic bacteria and the development & application of aquaculture probiotics. I have conducted systematic researches on bacterial diseases of cultured crabs, fish, soft-shelled turtles and other aquatic animals, including pathogen isolation, identification, pathogenicity, virulence factors and drug sensitivity tests. I also study photosynthetic bacteria and other probiotics, evaluate their safety and pesticide tolerance, and clarify their mechanisms in improving host immunity, regulating intestinal flora and metabolism, and resisting pathogen infection. I have published a number of Chinese and English papers and obtained related patents, devoting to green prevention of aquatic diseases and sustainable aquaculture.