The present study aims at investigating the effectiveness of music on quality of life and anxiety symptoms of the veterans with post traumatic stress disorder in Bustan hospital of Ahvaz City. 40 persons were selected by simple random sampling method from the aforementioned population. The research design was an experimental one of type pretest-posttest with control group. Quality of Life inventory SF-36 (2005) and Spielberger Anxiety inventory (2005) were used for collecting the data. After selecting groups randomly, pretest was implemented on both experiment group (20 persons) and control group (20 persons). Then, music therapy intervention was implemented on the experiment group during 20 sessions each of which with 45 minutes. At the end of subject program, both groups were given posttest. Data were analyzed by using the multivariate covariance analysis. Results showed that presenting music can affect quality of life and anxiety symptoms of the veterans with posttraumatic stress disorders and this effect remained stable after one month of follow-up. Therefore, presenting music can be effective in treating the veterans with stress disorders after the accident.