ARGIN: 0cm 0cm 0pt" class=MsoNormal>an’,’serif’" lang=EN-US>In this paper, the authors analyzed the earthquake reflecting ability of cross-fault deformation observational data in the capital area of China, and discussed the earthquake monitoring capability of sites. The results show that: 69.64% cross-fault deformation observation data have better earthquake-reflecting ability on the strong earthquakes occurred, 75.00% monitoring sites have better earthquake monitoring capability on the strong earthquakes occurred, and can better capture the strong earthquake preparation, development, occurrence of precursory anomalies.an’,’serif’; mso-bidi-font-size: 14.0pt" lang=EN-US>amespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />