There are a series of compressional, torsional and compressive structures in Hebei, Shandong, Jiangsu, Anhui, Jiangxi, Fujian and other adjacent areas in eastern China. Its main body is located between east longitude117 ~119. They have obvious zonality, roughly equidistant in the transverse direction, and an obvious concentration area appears every 20 ′ ~ 30 ′ longitude. In the longitudinal direction, there are traces in the bedrock from the mountainous areas of eastern Hebei to the mountainous areas of Fujian and Jiangxi, and the strike is generally 5 ~ 10 northeast or northwest, forming a north-south structural belt several meters long. The system has not only large compressive and compressive fracture zones and fold zones, but also large north-south banded uplift and depression, and sometimes mixed with north-south migmatite zones and granite zones. Gravity and magnetic data show that some of their components have good continuity and constitute some structural zones with great influence depth. From the formation and evolution history, the northern, central and southern sections are not consistent, even far apart, but from Mesozoic to Neogene, they have the same basic characteristics and development process. In other words, there are some early structural zones and structural features in the distribution area of the system, which are now distributed in the north-south direction. Since Mesozoic, they have been transformed or merged into the east-west structural system of Anhui, such as eastern Hebei and Zhangbaling in eastern Anhui.

Because the system is scattered, intermittent and covered by Quaternary, it was recognized late, and has gradually gained a more consistent understanding since the 1980s. For the Fujian-Jiangxi section, the author once classified it into the meridional structural system of Fujian-Jiangxi-Taiwan-Pengin the book "Main Structural System of China". In the late 1970s, the central part of this system was named Anhui East Structural System. In the northern Hebei-Shandong-Henan region, Liu Deliang and others called it the Hebei-Shandong-Henan meridional structural belt in the late 1980s. Zhao Jianwei called the Central South Section the Meridian Zone of Anhui, Jiangxi and Fujian. Generally speaking, the study of East Anhui is more detailed and representative, so it is more appropriate to call it East Anhui tectonic system or East China tectonic system.