Objective: To choose the optimal extracting process of Cordyceps militaris by multi-index synthetic evaluation method. Method: Using cordycepin

adenosine

uridineas

content of polysaccharides and paste rates as detecting index

orthogonal test method was used for studying with four extracting factors (the solid liquid ratio

alcohol concentration

the extracting time

the times of extracting) on the extracting process. Result: The optimum condition of C. militaris was: eight times of water

extracting one hour

three times. Conclusion: The study optimized extraction technology of C. militaris and provides the experimental basis for its further use and product development.