There are subsidies. Crayfish farming belongs to aquaculture, and aquaculture countries have subsidy policies. From 2065438 to 2008, the Ministry of Agriculture and the Ministry of Finance arranged 4 billion yuan to subsidize the purchase of agricultural machinery. While the scale of subsidy funds has expanded, the types of subsidies for purchasing agricultural machinery have also expanded. Among them, for the first time, three types of aquaculture machinery, namely aerators, baiting machines and dredging machines, were included in the subsidy catalogue.