目的:建立北豆根药材质量评价方法。方法:采用灰色关联度分析法,对不同地区北豆根药材商品中4种主成分的含量,以相对关联度为测度,构建灰色关联度分析质量评价模型。结果:应用该方法建立了北豆根药材商品的质量评价模型。结论:该方法及模型可用于北豆根、药材商品质量评价。 Objective: To establish the quality evaluation method of medicinal herbs of Methods: The gray relational analysis method was used to evaluate the content of four main components in the Medicinal Pelargonium medicinal products in different regions, and the relative degree of correlation was taken as the measure to establish the gray relational degree analysis quality evaluation model. Results: This method was used to establish the quality evaluation model of Medicinal Herbs. Conclusion: The method and the model can be used for the quality evaluation of Pea root and medicinal materials.