With the goal of effective restoration of textiles, Italian conservation and restoration methods were applied to silk relics. A patterned yellow silk kasaya from the management center of the Eight Outer Temples of Chengde was treated, based on the restoration theory of Brandi. Dust was removed, and the textile was cleaned, dried, dyed and reinforced. The dyeing of white silk and white thread, which is emphasized in this article, followed the Italian conservation and restoration methods. After the restoration, most dirt was removed and the damaged parts were reinforced. The traditional method of needle-sewing made the restoration reversible.