本文藉助点过程的区间性质和计数性质对从1480年到1980年间中国北部的地震历史资料进行统计分析。标准的检验显示存在轻度的簇生效应,但对泊松过程没有明显的偏离。进一步的分析还表明,较大的事件(M≥7)有规则发生的趋向。最后,我们用一个带有约为300年的自然松弛周期的应力释放模型拟合这些数据。 In this paper, the historical and seismic data of the northern China from 1480 to 1980 were statistically analyzed with the help of the interval property and the count property of the point process. The standard test shows that there is a slight clustering effect, but there is no obvious deviation from the Poisson process. Further analysis also shows that larger events (M ≥ 7) tend to occur regularly. Finally, we fit these data with a stress relaxation model with a natural relaxation period of about 300 years.