The complication work of Zuo Zongtang’s archives has been carried on since he passed away. The outcome of the complication of Zuo Zongtang’s archives is abundant, including complete works, special works and supplement works. The complications of Zuo Zongtang’s archives are arranged according to classes, include large information content, standardized format, detailed and accurate additional articles, bright and accurate titles, follow and correct the old ones and present regional and diachronic features.