Objective: To optimize processing technology of Moutan Cortex carbon. Method: With the content of gallic acid,5-hydroxymethyl furfural,catechin,paeonol as comprehensive evaluation index,based on single factor tests,herb-to-sand ratio,processing time and temperature were selected as independent variables,sand-scorch method was adopted,processing technology of Moutan Cortex carbon was optimized by Box-Behnken response surface methodology. Result: Optimum processing conditions were as follows: processing time ...