Objective: To evaluate the quality of Hedysari Radix based on grey incidence degree method. Method: The 31 batches of Hedysari Radix samples were collected in Wudu district

Tanchang county

Minxian county

and Wushan county of Gansu province

and the contents of calycosin and formononetin were determined by HPLC. The content of extract was determined with the method in Pharmacopoeia of China (version 2010). Polysaccharide of Hedysari Radix was determined by ultraviolet spectrophotometry method. Grey incidence degree method was used to establish Hedysari Radix quality evaluation models with the defined relative degree of incidence as the measurement. Result: The results of quality evaluation on 31 batches of Hedysari Radix samples were consistent with those of genuine producing area. The main producing area for Hedysari Radix was Wudu district

and the best quality was from Micang mountain in Wudu district. Few samples of Hedysari Radix in Wudu district had somewhat lower quality

followed by those from Wushan

Minxian

Longxi

and Tanchang of Gansu province. The samples from Xinhua

Pangjia

Chela

and Guanting of Tanchang county had lowest quality

with decayed marks on the head of the herbs. Conclusion: Grey incidence degree method and the established Hedysari Radix quality evaluation models can be used to evaluate the quality of Hedysari Radix.