The technology of preparing sodium copper chlorophyllin from Banhinia purpurea linn leaves was studied.The optimum technological condition was found.

• 由羊蹄甲树叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠，研究探讨了优惠提取工艺条件和反应条件。