Abstract: The electromagnetic radiation data observed for many years in the Capltal circle and its srounding area demonstrates that electromagnetic radiation anomalies are rerelative signfieantly with the earthquakes M≥5 with in a rang of 300km,the earthquake M=4.5～4.9 within 200km and the earthquakes M=4.0～4.4 within 100km The seismic preeursor feature is that the larger the earthquakes,the shorter the epicentral distanee;the longer the duration,and the greater the amplitude of the anomalies,as well as the anomalous area,i.e.the number of the stations with anomalies,is positive proportional to the earthquake magnitudes.The statistieal result shows that the correspondence ratio of moderately stror, earthquakes or stronger eventsreaehes 76%.

Key words: Capital circle, Electromagnetic radiation, Seismiec preeursor feature