文章简单介绍了混凝土材料的细观结构层次、性质及其初始细观裂纹产生原因。在对混凝土的损伤机理进行分析的同时,简单介绍了混凝土细观力学的方法及研究进展。最后对混凝土试件在简单受力情况下的变形与损伤的规律进行了描述。 The article briefly introduced the microstructure level, the nature and the reason of the initial mesoscopic crack in concrete materials. While analyzing the damage mechanism of concrete, the methods and research progress of concrete meso-mechanics are introduced briefly. Finally, the law of deformation and damage of concrete specimens under simple stress is described.