Earth-science much more faced urban area recently. Anthropogenic activities impacted on urban environment, urban geochemical problems resulted from natural and anthropogenic processes were paid attention. Urban environmental geochemistry was a subject that applied the principles and methods of geochemistry to resolve urban ecological environmental problems. Urban environmental geochemistry mainly study distribution, evolution, reaction, process, ecological effects and human health of chemical elements and isotopes in urban soil, air, sediment, dust, surface water, groundwater, animal and plant. Urban environmental geochemistry focused on traditional industrial city, mining city and international metropolitan city and other cities. Since the concept of urban geochemistry was established in 1990, urban environmental geochemical survey and research was carried out in many countries, such as Great Britain, Germany, and Estonia. At present, urban environmental geochemistry has been becoming an important field of environmental geochemistry and urban environmental science. However, there are some problems to study deeply in urban geochemistry. The study concerning and frontiers of urban geochemistry are: (a) Geochemical mapping of urban environmental system, (b) Urban geochemistry and environmental pollution, (c) urban geochemistry and ecological risk, (d) urban geochemistry and human health, (e) Controlling of urban geochemical system and environmental planning.