To optimize the processing technology for Shihua according to processing purpose of Mongolian Medicine of Shihua.Methods:Under the instruction of doctors on Mongolian medicine， taking brittleness of the medicine as the index， through monitoring contents of water， optimizing processing conditions of traditional processing technology， and utilizing techniques from best traditional processed medicine， and finally the processing method of Shihua was indentified.Results:The suitable condition for light stir-frying process of Shihua was the temperature of 110 ℃ in 3 minutes. In this condition the moisture content was in the range of 4.14 to 4.63%， and repeatability was good. After water wash， the total ash of Shihua didn′t change significantly， but acid insoluble ash obviously decreased by 5%. The best condition for drying process of Shihua was 60 ℃ in 3 hours.Conclusion:Water wash before processing is suggested. The suitable condition for light stir-frying process of Shihua would be the temperature of 110 ℃ in 3 minutes. The best condition for drying process of Shihua would be 60 ℃ in 3 hours. The moisture of the processed products should be controled in the range of 4.1 to 5.0%.The second method is convenient， feasible with shorter working hours， and suitable for large-scale production.