Objective: To investigate the establishment and application methods of entropy-weight TOPSIS model in synthetical quality evaluation of traditional Chinese medicine with Angelica sinensis growing in Gansu Province as an example. Methods: The contents of ferulic acid,3-butylphthalide,Z-butylidenephthalide,Z-ligustilide,linolic acid,volatile oil,and ethanol soluble extractive were used as an evaluation index set. The weights of each evaluation index were determined by information entropy method. The entropywe...