摘要
Beijing is situated at the junction of Taihangshan Mountains and Yanshan Mountains; its geological environment is complex, which is an unwonted city in the world for including mountainous areas, plains and basins. Furthermore, it is one of the six capitals with geothermal resources. Beijing is named as the geological cradle in China. To adapt the development layout in Beijing, it needs seeking an independent research way of geological environment system on city. For embodying the importance of geological environment system to Beijing development, the author should not only focus on the geological studies of North Mountains, West Mountains, basins and plains, but also think about the tasks on the 6th Ring Road and its adjacent area.