 A study investigated the stability and dyeing properties of natural dye extracted from wild phytolacosie berries on silk fabric, finding excellent stability during heating, pH or adding metal ions. The KS value increased by 14.3% with SNCL2 Mordent, and rubbing and washing fastness were improved by 0.5 to 1.5 grades compared to direct dyeing method. This article was authored by Yun Jiayin, Liang Fei and Chao Xiaowang.