古代公文作为实用文体，因其写作目的的需要，与文学作品难以截然分开，以及作者大多擅长文辞而带上浓郁的文学色彩。古代公文具有独特的文学特色，是古代社会的产物，探讨其原因，可以了解公文写作的历史演变，并从古今公文的差异中，更加明确现代公文的写作特性 Ancient official document as a practical style, because of its purpose of writing, and literary works is difficult to completely separate, and most of the author is good at diction and bring rich literary color. Ancient official documents have unique literary features, is the product of ancient society, explore its causes, we can understand the historical evolution of official documents, and from the differences between ancient and modern official documents, the more clearly the writing features of modern documents