Urban geochemical risk assessment for ecological environment generally has become a concern. In recent years, a lot of urban geochemical work has been done, but have not formed a recognized and a sound evaluation system and method. Combining with development of Jinan city, from the view of urbanization and urban geological environment, the model of urban geochemical evaluation system is set up. Thus, the man-made disturbances (engineering activities) and the geological environment in the process of urbanization are expected to be soluted effectively. It is also a try of urban environment geochemical exploration work.