Large spectrum of Tibetan genealogy, with family lineage as center, recorded the origin of ancestral land, history of their entering Taiwan and cultivating land in Taiwan, their rise and fall of honor and blood and lineage of their family surname. These genealogies record the ancestors' reason and process of immigration, reproduction and distribution of their family and their encounter and living conditions, etc., maintaining the spirit of cross-strait contact with mainland. The process of checking, copying and extending the genealogy shows the Taiwan families spared no efforts to trace their origin, highlighting special kinship of the continuation of the process of cultural inheritance relationship between Taiwan and mainland, showing strong tracing feelings and identification of mainland culture. Because the number of Taiwan genealogies reach over 10,000. Therefore, Wang You's genealogy is taken as and individual case to analyze its characteristics of copying genealogy at their ancestor land, establishing family imagery boundaries, inheriting by different family and combining families of same surname. Meaning, method, and content of cross strait exchange in genealogy are explored in this paper.
