Abstract： Objective： To analyze the rules and experience of LIU Baoyi， a Chinese medicine practitioner in Longsha Area，in the application of the method of using particular Chinese herbs to process other Chinese herbs in medical cases in LIU Baoyi's Medical Cases. Methods：The categories of medical cases which reflected the method of using particular Chinese herbs to process other Chinese herbs and the frequency of Chinese herbs processed by this method were analyzed. Results： There were 37 categories of medical cases in the whole book，and 65 kinds of Chinese herbs were used by this method. The categories of medical cases which recorded more than nine times of use and ranked at the top ten were hernia，vomiting and retching，limb pain，women，phlegm rheum，children，latent warmth，liver wind，hemoptysis and liver fire. The top ten Chinese herbs in the frequency of use were Fructus Toosendan， Colla Corii Asini， Rhizoma Coptidis， Pericarpium Citri Reticulatae Viride， Radix Achyranthis Bidentatae， Cortex Phellodendri Chinensis， Radix Paeoniae Alba， Rehmannia Glutinosa，Pericarpium Trichosanthis and Radix Scutellariae. Conclusion：The characteristics of the method of using particular Chinese herbs to process other Chinese herbs are as follows. Firstly， the method is widely used and varied in usage. Secondly，the priority should be given to dispelling pathogen and combined with protecting the stomach. Thirdly，the effects of other herbs are guided to specific channels and the effects are improved while the toxin reduced. Fourthly，the effects of herbs are mainly focused，and the medicinal processing supports. Fifthly，the decoction takes the place of drinking water to improve the effects. It is found that this method has some enlightenment to the compatibility， use， processing and - medicine-taking of Chinese herbs.