简要介绍编制中国地震区划图（1990）的技术途径。结合对我国地震活动时间和空间不均匀分布认识和我国地震预测方面的科研成果，对地震危险性分析概率方法作出几点重要改进。

In this paper, the technical approach for compiling the map of the seismic zonation in China (1990) was briefly introduced. Based on the cognizance of the temporal-spatial inhomogeneity of seismicity in China and the research results of earthquake prediction in the past two decades, some improvements on the seismic hazard analysis were made.