In this paper, we made a systematic study on observational data of more than 40 years of ten temporary fault-crossing measurement sites in the Capital Circle Region of China. We calculated horizontal and vertical components of fault slip, and horizontal tension or compression component. Considering the tectonic characteristics of the Capital Circle Region and regional seismicity, we analyzed the present fault activity of the Capital Circle Region and the relationship with earthquake. The results show the complexity of fault activities in the region： the level of activity of all faults is low; most faults are mainly left-lateral strike-slip faults; vertical activity is less than the level of activity and crustal movement is still controlled by horizontal movement; fault activity and earthquake activities have a certain relationship, regional fault activity strengthens before the earthquake and fault activity has certain abnormal features before the strong earthquakes.[著者文摘]