This paper mainly studied the influences of the acid-base,temperature,metal-ion on the chrysanthemum morifolium ramat dye. This paper also investigated the dyeing properties of chrysanthemum morifolium ramat dye on ERI silk fiber. The resear results showed that: the chrysanthemum morifolium ramat dye had very good p H stability from 3 to 7,and it can dye ERI silk; but the metal-ion had hyperchromic effects on the dye. The dye had satisfactory stability under 100 ℃,the optimum process of pre-mordant dyed wit...