文章简要介绍了与地震预测预报有关的几个物理问题,包括地震活动性问题、地球深部物质的物理性质及其变化问题、地球深部的流体问题、地震破裂问题、地球深部的形变和应力问题.这些问题的研究涉及当代物理学的一些前沿领域,唐山大地震后30年来有诸多重要进展. This paper briefly introduces some physical problems related to earthquake prediction and prediction, including seismicity, the physical properties of the Earth’s deep matter and its variation, fluid problems in the Earth’s deep, earthquake rupture, deformation and stress in the deep Earth. The research on these issues involves some frontier fields in contemporary physics. There have been many important developments in the 30 years since the Tangshan earthquake.