Objectives: The purpose of this study is to investigate the correlation between pattern identification of traditional Chinese medicine (TCM) and western medicine, examined by a systematic research of Chinese medicine papers. Methods: We searched for the papers regarding pattern identification of TCM published from 1994 to 2012 in CNKI (China National Knowledge Infrastructure http://www.cnki.net) at April, 2012. Results: A total of 30 studies were finally included; 18 studies of them were related to stroke (cerebral infarction) and there were 12 studies regarding other diseases, such as hypertension, chronic colonitis, vascular dementia, mild cognitive impairment and etc. All 30 studies were analyzed and classified by diseases, differentiation of syndromes, numbers of subjects, the instrument of pattern identification, items of western medicine examination and statistical results. Conclusions: According to our study, there are some correlations between pattern identification of TCM and various items of western medicine examination. The result suggests a possibility of using the western medicine examination data for pattern identification of TCM.