Purpose: This study was conducted to describe the meaning units of the teaching experience of Tai Chi instructor with nursing background, consequently to expand areas where nurses can work. Methods: Participants were four nurses who have worked as Tai Chi instructors for 5 to 8 years. An in-depth interview was conducted from June, 2010 to February, 2011. Each interview took 40 min to 4 hours. The data were analyzed with qualitative content analysis, by repeatedly listening to the tapes and reading the transcription to find the emerged meaningful words, phrases, and sentences. Results: Through the content analysis, 19 theme clusters were emerged and grouped together into seven categories: "establishing my identity as an instructor", "enjoying myself practicing Tai Chi", "being confident about teaching Tai Chi with nursing background", "exploring better ways to teach and motivate the class", "feeling good about helping people to be healthy", "accepting teaching Tai Chi as a lifetime job", "contributing to health promotion with Tai Chi.” Conclusion: Teaching and helping others to promote health were parts of nursing. Tai Chi can be used to promote health in the low-income population with limited access to health care system.