Objective: To grade the Citrus reticulate ‘Chachi’ commercial specifications and formulate the new draft of C. reticulate ‘Chachi’ commercial specifications and grades for the market application. Method: Experienced experts in the study field of Chinese medicinal materials commercial specifications and grades were selected

and the C. reticulate ‘Chachi’ medicinal materials were evaluated by a two-round blind investigation based on Delphi method. The experts evaluated the grade of C. reticulate ‘Chachi’ commercial specifications by observing their appearance. Then the statistical analysis was conducted to screen out the core indexes of the sensory evaluation of C. reticulate ‘Chachi’ commercial specifications

sort out their importance

and calculate the individual reproducibility and consistency among experts group in sensory evaluation. Result: The main indexes of sensory evaluation of C. reticulate ‘Chachi’ commercial specifications were smell

oil cavity

taste

thickness and surface color

etc.

and their degree of importance was weakened successively. The average individual reproducibility of two blind evaluations was 81.4%

and the average reproducibility among experts group was 75.0%. Conclusion: The experts experience in sensory evaluation of the C. reticulate ‘Chachi’ commercial specifications and grades was objective and reproducible

and Delphi method can be used as one of methods to study the traditional sensory evaluation of Chinese medicinal materials objectively and normatively. By combining the experimental results and the market actual situations

the new draft of C. reticulate ‘Chachi’ commercial specifications and grades was formulated in this study

providing a reference and theoretical basis for the ultimate draft of the grades standards.