In other words, three-point technology and seven-point management produce benefits. Large-scale farming must understand scientific management in order to achieve sustainable development. Especially for large-scale farms, it is necessary to establish a relatively perfect management system. The first is to establish a scientific and applicable management system. Including health protection system, feeding management operating rules, equipment maintenance system, material management system, post responsibility system and performance appraisal system. The second is to strengthen the standardization of aquaculture operations. Improve the professional quality of farm staff, make them master the breeding technology skillfully through study and training, and enhance the standardization of operation. Regularly organize, clean, clean, cultivate and check the production factors such as on-site materials and equipment. Third, we should pay attention to the management details and fill in the breeding report and production record. Large-scale farms should have standardized file records, including: veterinary drug purchase records, veterinary drug use records, production and sales records, livestock and poultry epidemic prevention records, harmless treatment records, feed purchase records, feed use records, disinfection records, etc. Fourth, large-scale farms should be careful not to use illegal drugs. The illegal drugs include clenbuterol hydrochloride, ractopamine, salbutamol, phenylethanolamine A, terbutaline, diclofenac hydrochloride, chloramphenicol, sex hormone drugs, diethylstilbestrol and so on.