As an important part of healthy city construction，fine management of urban environment is directly related to and reflects the public’s demand for a better life and the expectation of high-quality life. As the eyes and ears of eco-environmental protection，under the situation that the country resolutely wins and completes the battle of pollution prevention and control，“environmental monitoring” has formed a systematic，refined，information-based and intelligent eco-environmental monitoring network integrating modern scientific and technological means，covering multiple media and indicators and covering the whole area，which has not only laid the foundation for the fine management of healthy urban environment，It also provides a powerful grip. It is found that the ambient air quality in Beijing during the 13th five year plan is generally good，with obvious temporal and spatial differences；The concentration level and improvement of environmental quality in each area are different，and there are great differences；Fine management of urban environment based on population exposure characteristics，reflecting health priority；The relative health hazard quotient of major ambient air pollutants in Beijing presents a region with relatively low population density，and the overall impact of various pollutants on the health of the population is relatively small. We should continue to promote the construction of three-dimensional comprehensive monitoring system for digital city and atmospheric environment，continuously improve the refinement level，healthy city construction and the refinement and management level of the city.