Abstract:Objective:To optimize the herb processing process for the total contains of psoralen and isopsoralen and the rate of extract in Psoralea corylifolia by micro-wave herb processing.Method: The contains of psoralen and isopsoralen was obtained by HPLC.The micro-wave herb processing process was optimized by the way of uniform design and contour map.Result: The optimum process was:20% as salt concentration,4h as immerse time, micro-wave strength as strong ,270seconds as micro-wave time. The absolute error of the predicted value from the models were smaller than 6% and 0.3% respectively.Conclusion: The regression models are notable and reasonable, which can forecast results precisely.