本文根据华东南地区中新生代伸展构造的发育特点，划分出热隆伸展、裂陷伸展和重力伸展等３种伸展构造类型。其中，热隆伸展构造又可进一步划分为浅层次热隆伸展构造和深层次变质核杂岩构造两种亚类。不同类型伸展构造在构造样式、组合型式、运动方式、同构造期岩浆作用及形成作用特征等方面均存在明显的差异，文中分别对其进行了初步总结。 According to the developmental characteristics of Meso-Cenozoic extensional tectonics in the southeastern China, three types of extensional tectonic types, such as extension of the Helan period, extension of the rifting and gravitational extension, are classified. Among them, the Heilongling extensional structure can be further divided into two subtypes of the shallow-level Heilongling extensional structure and the deep-level metamorphic core complex structure. Different types of extensional structures have obvious differences in tectonic styles, assemblages, movement modes, magmatism and forming features in the same tectonic stage, and are summarized respectively in the paper.