The separation and preparation methods of oridonin by medium pressure column chromatography have the advantages of fast speed,high efficiency,harmlessness,safety and economy.

• 采用中压柱层析法提取分离冬凌草甲素,具有洗脱速度快,分离效率高,溶剂无毒无污染,安全、价廉、易得等优点。