Data mining acquires an increasingly greater significance in Traditional Chinese Medicine(TCM) field,it plays a more important role in inheriting experience of famous doctors of TCM.Data mining of their experience is based on structured TCM Electronic Medical Records(EMR).By explaining the expression structure of TCM EMR and data collection technology,the common used methods for both explicit knowledge and tacit knowledge in data mining of experiences of famous TCM doctors,the paper proposes existing problems and relevant suggestions.