Abstract: With the intensive and large-scale development of turtle culture, the state strengthens environmental protection and puts forward higher requirements for the discharge of turtle culture tail water. It is particularly important to intervene and regulate the water body of greenhouse culture artificially. The paper expounds from these two aspects, and the results show that: in the process of aquaculture, the water body should be intervened and regulated to maintain water quality and reduce tail water discharge. The posttreatment and recycling of tail water is a key problem that must be solved for turtle breeding in greenhouse at present.