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Background and purposes: Post-disaster mental rehabilitation is not just a short-term intervention, but also need to be mid-term and long-term follow up. Therefore, this project is going to explore the prevalence and mental rehabilitation outcome of posttraumatic stress disorder (PTSD), major depressive episode (MDE), quality of life and the impact of risk factors in the survivors of Morakot typhoon within two years. Method: We conducted the pilot project and 5,055 community survivors were received survey. Conducting a community with a mobile medical screening for case finding and classification (high, medium and low risk groups), and follow-up by providing the survivors care and service in the acute stage. Then, we conduct screening to investigate prevalence and risk factors, and provide follow-up care to the person who has mental and emotional disorders caused by posttraumatic stress syndrome, and the continuing community care also carry out by medical case management model from two aboriginal villages nearby two years later. All the subjects are investigated by the reliability and validity of the questionnaire --- Disaster-Related Psychological Test (DRPST) and short form-12 (SF-12) after disaster in acute stage, and two-year respectively data are analysis with SPSS 17.0 Chinese version. Results: The survivors who lived in more serious damage area had 41% probable PTSD and 59% MDE. When the survivors had probable PTSD, their quality of life was prominently lower than those of without probable PTSD. There were no prominently abnormal findings of quality of life between aborigines （338）and non-aborigines（88）except ‘’general health’’ and ‘’role limitations due to physical problems’’’. Conclusion: The more serious damage area the survivors lived in, the higher prevalence of probable PTSD or MDE, the survivor had. When the time passed away, the prevalence of probable PTSD or MDE decreased.