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东海陆架外缘隆褶带是菲律宾海板块俯冲带陆侧弧后裂陷盆地（陆架盆地与冲绳海槽）之间的水下残留火山弧。其地球物理特征、地层组成、岩浆活动及地质构造等均具有“东西分带、南北分块”之特征。本隆褶带的形成始于第三纪初，当时为陆缘弧；中新世末以后，由于琉球弧后冲绳海槽的张裂作用，遂成为古琉球弧的残留弧。其形成机理受东海构造格局控制，与菲律宾海板块的俯冲作用及俯冲带的东向迁移有关，东海隆褶带的形成和构造演化大致经历了四个阶段：（１）断隆火山弧（Ｅ１＋２）、（２）褶隆火山弧（Ｅ３）、（３）褶隆残留弧（Ｎ１）和（４）消亡残留弧（Ｎ２～Ｑ）．最后一个阶段隆褶带与陆架盆地整体沉降，接受了厚约１５００ｍ的上新世－第四纪浅海相沉积。
The East China Sea Shelf rim pleat zone is the residual underwater volcanic arc between the continental back-arc rift basins in the subduction zone of the Philippine Sea Plate (Shelf Basin and Okinawa Trough). Its geophysical characteristics, stratigraphic composition, magmatic activity and geological structure all have the “east-west zoning, north-south block” feature. The formation of this Longfang fold belt began in the early Tertiary Period, when it was a continental margin arc. After the Late Miocene, the Okinawa Trough became the residual arc of the Okinawa Trough after the Okinawa arc. Its formation mechanism is controlled by the structure of the East China Sea. It is related to the subduction of the Philippine Sea plate and the eastward migration of the subduction zone. The formation and tectonic evolution of the East China Sea fold belt generally go through four stages: (1) the extinction volcanic arc (E1 + 2 ), (2) Pleistocene volcanic arcs (E3), (3) Cretaceous residual arcs (N1), and (4) extinction residual arcs (N2 ~ Q). In the last stage, the fold belt and the continental shelf were entirely subsided and accepted the Pliocene-Quaternary shallow marine deposit with a thickness of about 1500 m.