At Mozuizi in Wuwei, a printed silk bag was unearthed from a Han Dynasty tomb. It is now stored at the Gansu Provincial Museum. However, conservation and restoration for this bag is urgently needed because of severe breakage, contamination and rot. In addition to doing instrumental analyses to look for clues, we referred to literature in order to develop a restoration scheme, and finally inferred the shape of the silk bag. Restoration for the silk bag included using the supporting method, selecting modern fabrics with the similar style as backing and applying the crepe reinforcement technology on the surface. The key technical points were also recorded and summarized. After restoration, the silk bag features a clear shape and texture, harmonious color and luster, increased overall firmness, and an enhanced ornamental effect. The ideal restoration effect could have referential significance for similar restoration and research in the future.