Within the Tang Dynasty bureaucratic system, phoenix paper served a dual ceremonial function: first, it was used to compose appointment decrees for officials of the fifth rank and above; second, it served as the exclusive paper for writing Qingci prayers during Daoist sacrificial rites . This dual purpose reflected the Tang Dynasty's cultural characteristic of integrating politics and religion, simultaneously serving the operations of the bureaucratic system and fulfilling the requirements of religious ceremonies. Qing dynasty records indicate that the imperial tradition of “signing with phoenix paper to summon musicians” persisted into the 17th century, confirming its transition from practical document use to ceremonial symbolism.