本文探讨了我国大陆震级在Ms7.3级以上的大地震发生后的一段时间内(约二年三个月),以牵联其震中附近地区实际发生的一系列主要地震的能量大小来定义大地震的类别(正常震、正异常震和负异常震三类)。再根据历史地震资料,分别找出各类大地震在其震后二年三个月至若干年间,震中附近地区,地震活动水平等方面的统计规律。这对分析大地震震后附近地区的地震形势有一定的参考价值。 This article explores the magnitude of the energy of a series of major earthquakes that actually occur in the vicinity of their epicenter over a period of time (about two years and three months) after the occurrence of a major earthquake with a magnitude above Ms7.3 on the Chinese mainland The types of earthquakes (normal, positive anomalous and negative anomalies). Based on the historical seismic data, the statistical laws of various types of large earthquakes in the areas from three months to several years after the earthquake, the area near the epicenter and the seismic activity level are respectively found based on the historical seismic data. This is of some reference value for the analysis of the earthquake situation in the vicinity of the major earthquake.