This research has a goal to examine whether yoga program reduces stress and anxiety for worker. Yoga program of this study consists of asanas, breathing, and relaxation which are based on Iyengar Yoga Tradition, Bihar Yoga Tradition and Program by Vivekananda Institute. The state anxiety and trait anxiety were examined with STAI which is designed by Spielberger(1970) and modified by Kim(1978). And the stress survey which is made in Korea Stress Management Institute was used to measure the state of the stress. The yoga programs were applied for 10 weeks with the total twenty sessions at Internet Service Company in Seoul. The participants were divided into two groups, one of which is experimental group and the other is controling group. The statistical analysis is used by ANCOVA and analyzed by SPSS Program. The following is a results of research. First, yoga program significantly reduced the work-related stress and psychological stress of the experimental group. Second, yoga program significantly reduced the state anxiety and the trait anxiety of the experimental group. These results have proved that the yoga programs have reduced stress and anxiety. consequently, the yoga program can be actively utilized to reduced stress and anxiety for worker.