采用香草醛-冰乙酸-高氯酸显色法测定来自云南3个不同地区茯苓中的总三萜含量。结果表明,3个不同地区茯苓中总三萜平均含量为5.96 mg.g-1～9.26 mg.g-1,它们之间没有显著差异。茯苓皮中总三萜平均含量13.44 mg.g-1,显著高于茯苓肉3.37 mg.g-1,并且新鲜茯苓样品中总三萜含量低于干燥样品。 The total triterpene content in Poria cocos from 3 different areas in Yunnan was determined by the method of vanillin-glacial acetic acid-perchloric acid. The results showed that the average content of total triterpenoids in Poria cocos from three different areas was 5.96 mg.g-1 ~ 9.26 mg.g-1, and there was no significant difference between them. The average content of total triterpenoids in Poria cocos skin was 13.44 mg.g-1, which was significantly higher than that of Poria cocos meat 3.37 mg.g-1, and the content of total triterpenoids in fresh Poria cocos samples was lower than that of dry samples.