Environmental inspection is to use GIS technology to design an environmental inspection network. The information collected through environmental testing can be saved and displayed in time through GIS, and the selected evaluation field can be monitored and analyzed in detail. This is the basis of scientific environmental management and environmental law enforcement supervision, and the basic work of environmental protection. The central goal of environmental monitoring is to provide data on the status quo and trend of environmental quality, judge environmental quality, assess current major environmental issues, and contribute to environmental management. Based on the analysis and classification of related literature, this paper adopts the method of literature induction to analyze the development trend of current research on the improvement and upgrade of network theory by domestic and foreign scholars. On this basis, the research on the network theory of improvement and upgrade is divided into three parts: the research on the dynamic factors of the upgrade, the research on the upgrade mechanism, and the research on the upgrade path. In China, the sources of PM2.5 are very complex, most of which come from the linear contribution of primary particulate matter. Therefore, the improvement of the response surface model and the establishment of real-time environmental detection and analysis tools suitable for PM2.5 emission characteristics and environmental concentration have high application value. The source of PM2.5 in indoor air environment can be divided into two parts. One is the emission of PM2.5 pollution sources in indoor buildings, and the other is the spread of PM2.5 pollutants from outdoor air to the indoor environment. In order to deal with air pollutants, we adopt pollutant emission control technology and control pollutant emission policies to achieve air pollution control.