There are various measures to strengthen the aquaculture business, but one is to increase resistance to fish prices. For that purpose, it is essential to increase the production efficiency of aquaculture. There are several specific methods, such as breeding, making large cages to increase productivity, and developing offshore fishing grounds. These measures will reduce costs and increase productivity. Issues in the aquaculture business include fish diseases, disasters, and natural disasters, but the aquaculture business can be particularly affected by typhoons. There are various ways to deal with typhoons, such as changing the shape of the cage to a subsidence type. In addition to lowering costs and increasing productivity, we want to promote research to improve quality and make it a strong aquaculture business, including increasing added value.