Environmental governance performance has been a popular topic in environmental governance research, and the intrinsic linkage between environmental policy and policy intensity has been a hot topic of scholarly research. In this paper, we summarize and generalize and construct a literature review based on the study of many views of domestic and foreign scholars. China's environmental policy is still imperfect, the current state of environmental pollution is not optimistic, and the economic growth rate has slowed down, so it is imperative to study the impact of policy intensity on environmental management performance.