This study aimed to evaluate the reproducibility and scientificity of organoleptic evaluation method for Chinese medicinal materials. A two-round investigation based on Delphi method was performed to test the consistency and reproducibility of organoleptic evaluation on Rhizoma coptidis. Fourteen experts were invited in this evaluation. The influence of working years, job category and education background of these experts on their evaluation results was also discussed. Then, main organoleptic indices which experts emphasized on the evaluation o...