A thesis submitted to the Faculty of Zululand in partial fulfilment of the requirements for the Degree of Doctor of Philosophy: Community Psychology in the Department of Psychology, 2008. / Increasing amounts of scientific evidence has suggested mat a mind-body exercise, such as Tai Chi, is related to improvements in mental health, emotional well-being and stress reduction. No prior study has examined the effect of Tai Chi exercise amongst street children. Working within the context of community health psychology, the present study evaluated a Tai Chi program with street children within the South African context. The research design was quasi-experimental with the participants from places of safety within the surrounds of Durban attending Tai Chi exercise sessions twice per week for 16 weeks. This programme was pre- and post-tested with a focus group interview and Carol Ryff s standardized psychological well-being scale. Statistically significant improvements in the following measures of psychological well-being were found: autonomy, personal growth, environmental mastery, purpose in life, positive relations with others and total psychological well-being. Qualitative findings revealed an increase in positive feelings, improved physical fitness and mental health, and stress reduction. Further outcome evaluations by stakeholders (child care worker, Department of Health Officials, Tai Chi teacher) supported the qualitative findings, as well as indicating increased self-confidence and a positive synergy within the group. / The South African National Research Foundation (NRF)