The main goal of this study was to explore knowledge, belief, and behavior towards traditional Chinese medicine (TCM) among one community in Taipei. A questionnaire was used to survey residents over 30 years of age in 40 sections of Peitou district, Taipei City from August to December, 1995. A total of 2328 subjects were interviewed, and 1085 (47%) interviews were completed. The results of this study revealed: (1)Regarding knowledge about TCM, the most agreed to answer concerning the 15 statements about knowledge was "Herbal drugs are made in different forms according to drug's character and effect". Regarding beliefs about the effectiveness of TCM, most people agreed that "Taking herbal medicine not only can cure disease but also improve health". Regarding behavior intention towards TCM, the majority of subjects were inclined to use medicine, particularly in pediatric illness. The most frequent situations in which the subjects were inclined to use TCM were "Muscle sprain", "Joint dislocation" and "Ca re of puerperium" (2)Younger people had a profound insight about the value of TCM and were more likely to favor its use. Those with higher education levels were more likely to be familiar with TCM, but were also more likely to present a negative attitude toward its effectiveness. Hakka people had the best knowledge of TCM, and their beliefs and behavioral intention were in favor of it, too. TCM is thoroughly perceived by many western-religious believers, but their beliefs and behavior intention were less likely to be amenable to its use. Public-servants (i.e. soldiers, teachers, officers and police) were knowledgeable about TCM as well, while the beliefs and behavior intention towards TCM were positive (3)Of the types of medical services utilized, 68% used western medicine only, 2.9% use TCM only, and 29.1% used both western medicine and TCM.