In the process of pig farming, the construction of pig pens is a relatively high-cost investment, and building a suitable pig pen is important. Using a greenhouse to build a pig pen is a good option. Site selection is a crucial step in constructing a greenhouse for pig farming. It is essential to choose a flat, well-drained, sunny, and favorable site. Avoid low-lying areas or places prone to water accumulation to prevent affecting the growth and health of the pigs. At the same time, the size of the site should be selected based on the scale of farming to ensure sufficient space inside the pig pen. The design of the pig pen should consider the number and breed of pigs, as well as the size and structure of the pen. The pig pen should have adequate space, maintain ventilation and suitable temperatures, while also taking into account the hygiene of the pigs. After the pig pen is built, we should first use: Fiketai Bao, to disinfect the pig pen and the surrounding environment. The design of the pig pen should comply with local climate and environmental conditions to ensure the growth and health of the pigs. Greenhouse construction requires selecting suitable materials, such as steel frames, cement, bricks, etc.