民俗的谱系是民俗学对于文化整体性、互动性与结构性认识的重要视角与方法，民俗的谱系包括族群谱系、空间谱系、时间谱系与形式结构谱系。民间信仰的谱系是民俗谱系的子系统，其结构谱系也是有迹可循的。以东海海岛信仰为例，其信仰谱系更加鲜明地呈现出民俗谱系的复杂形态，前人对此已经有所认识，其意义在于首先将这种信仰特性发掘出来。东海海岛是国家安全的重要屏障，其民间信仰的共同性为构建东海安全提供了文化认同的资源。发掘东海文化的整体性与谱系性关联，也是构建东海平安的文化要素。因此，以东海海岛信仰谱系为线索的个案研究，具有深远的文化史意义和国家文化认同价值。

Folklore genealogy, which manifests itself in the aspects of group, space, time and structure, provides an important angle and methodology for studying culture from an integrate, interrelated and structural perspective. As a sub-system of folklore genealogy, the genealogy of faiths has its structure. This thesis studies the religious faiths on the islands in the East China Sea and finds out that its faith genealogy demonstrates the complexity of folklore genealogy. Moreover, the islands in the East China Sea constitute a protective barrier for national security, where the common nature of faiths among the people provides a resource for culture identity, which plays an important role in constructing the security of the East China Sea. So it is important to examine the cultural integrity and coherence on these islands to improve the regional security construction. Therefore, the case study of the faith genealogy on these islands has profound significance in the cultural history and high value in national cultural identity.