China has more than 300 kinds of aquaculture, making it the largest aquaculture country, accounting for more than 60% of the world's total aquaculture output since 2008. In 2020, China's aquaculture output exceeded 52 million tons, with an annual per capita volume of 46 kilograms, twice the world average. China's aquaculture seed production ranks first in the world, and a number of breeding technologies are leading the world. China has played an important role in the development of the world's fisheries. By Chinese fishery association, China association of aquatic circulation and processing, Chinese leisure fishing association and jointly organized by Beijing fishery association, the letter trump international exhibition (Beijing) co., LTD., to undertake "the 7th Beijing international fishery expo 2022" (hereinafter referred to as the "Beijing fishery expo") will be deferred to hold 】 【 in Beijing, China international exhibition center (the old pavilion). The exhibition area is estimated to be 20,000 square meters, with more than 300 exhibitors.