中生代以来,中国东部的构造活动特征前后有明显的差异,这一点已为广大的地质学者所共知。但是,如何认识这些差异性及其内在联系,又如何按构造活动特征划分构造阶段,则各有所持。事实上,不仅中国东部,而且包括陆架区,都存在着这种构造活动上的差异性,而且前后有成生联系。本文试图就此范围内的这些问题进行概略的探讨。广大的中国东部及沿海地区,在漫长的古生代,虽然其间也有过沉积间断,但基本上是升降运动控制下的海相沉积。进入中生代以后,地壳构造活动发生了急剧的变化, Since Mesozoic, the tectonic activities in eastern China have obvious differences before and after, which is well known to the majority of geologists. However, how to understand these differences and their internal relations, and how to divide the tectonic stages according to the tectonic activity, they are different. In fact, not only the eastern part of China but also the shelf area, there are differences in this tectonic activity, and there is a close relationship between them. This article attempts to make a rough discussion of these issues within this scope. The vast areas of eastern China and the coastal areas, during the long Paleozoic, are basically sedimentary deposits under the control of the ascending and descending movements, although sedimentary discontinuities have taken place between them. After entering the Mesozoic, crustal tectonic activity has undergone dramatic changes,