Abstract: Guanzhong Basin urban agglomeration is a densely-populated area and also a well-developed area in industry and agriculture. However, this area has a severe environmental geological problems. Taking Guanzhong Basin urban agglomeration as the research object, the authors carried on the integration analysis and synthesis research work, and completed the compilation of "Environmental Geological Map of the Guanzhong Basin Urban Agglomeration". This paper introduces the main content of the environmental geological map and the compilation method of main map and insert map. The map provides not only a scientific basis for the geological disaster prevention and geological environment protection, but also important support for the development planning and government decision-making. It also provides a reference for the compilation of environmental geological maps in other areas of China.