Genealogy (Zupu in Chinese) is the history of families. Genealogy has been widely used for the tracing of their lineages and history. Hakka is a special Chinese ethnic group. To explore the origin and history of Hakka people and their culture, this study starts with the genealogy. After several Hakka genealogies collected, the content analysis is performed in this study. According to the qualitative data analyses, this study designs the pedigree metadata standards for Hakka to implement the union catalog. The Hakka Pedigree Metadata is comprised of many individual family and ancestors, each of which has a process in place for archiving and distribution of genealogy. Hakka genealogical metadata contains the following types of constructs. 1) Pedigree: use given name and lines expressed the genetically related. 2) Individual: describe the personal information. 3) Family History: the story of the ancestors is narrated. 4) Bibliography: description of the genealogical book. 5) Miscellany: included the unique documents that could not categorized in the above four classification. Results of this study can be applied to genealogies integration and implement the union catalog.