You can't. The occupied farmland belongs to basic farmland, and it is not allowed to occupy the construction farm. It is forbidden for any unit or individual to occupy basic farmland to develop forestry and fruit industry and dig ponds to raise fish. Basic farmland can only be used for the production of crops such as grain, cotton, oil and vegetables, and cannot be used for aquaculture. Article 17 of the Regulations on the Protection of Basic Farmland prohibits any unit or individual from building kilns, houses, graves, digging sand, quarrying, mining, taking soil, piling up solid wastes or engaging in other activities that destroy basic farmland.

Legal basis:

Article 33 of the Food Safety Law of People's Republic of China (PRC) shall conform to the food safety standards and meet the following requirements: (1) Having food raw material processing, food processing, packaging and storage places suitable for the variety and quantity of food produced and operated, keeping the environment of the places clean and tidy, and keeping a prescribed distance from toxic and harmful places and other pollution sources; (2) Having production and operation equipment or facilities suitable for the variety and quantity of food produced and operated, and having corresponding equipment or facilities for disinfection, dressing, washing, lighting, lighting, ventilation, anticorrosion, dustproof, fly prevention, rodent prevention, insect prevention, washing, wastewater treatment and garbage and waste storage; Article 35 The State practices a licensing system for food production and marketing. Engaged in food production, food sales, catering services, shall obtain a license according to law. However, sales of edible agricultural products and sales only in prepackaged foods do not require permission. Only selling prepackaged foods shall be reported to the food safety supervision and administration department of the local people's government at or above the county level for the record.