Abstract: Aquaculture in China has a large scale and wide range，but high-density aquaculture can lead to problems of low efficiency，eutrophication，pesticide residue and tail water pollution.At the same time，aquaculture industry also has problems such as backward infrastructure，large gap between technology and equipment，lack of effective service support system and so on.To solve these problems，cross industry and interdisciplinary research must be carried out to form an ecological，efficient and intelligent aquaculture system.Based on technology of internet of things，application and popularization of digital fishery equipment in aquaculture was introduced.Results showed that digital fishery equipment could meet strategic needs of technological innovation of freshwater aquaculture industry and development of aquaculture industry in China，and it had great application and popularization value.