Introduction to wetlands: Wetlands are constructed on the basis of natural wetlands. Through embankment biological protection, a variety of plants are implanted, and the triple synergy of physics, chemistry, and biology of soil, artificial media, plants, and microorganisms is used to affect the water body. Purification again will play a role in controlling production and domestic pollution in the Shehe River Basin, enriching biodiversity, improving natural purification capabilities, and ensuring the safety of the water at the entrance of the Shehe River.