Aims One of the important psychological dimensions of prisoners of war that in most societies can be threatened and often overlooked, is their quality of life, resilience and flexibility of these people. The aim of present study was to investigate the effectiveness of resiliency training on quality of life and resiliency in prisoners of war. Materials & Methods In this semi experimental study with pretest-posttest design with control group and fallow-up session (after 2 months) in 2017, 30 prisoners of war in Divandarreh city, Kurdistan province were selected by simple random sampling method and randomly assigned into experimental and control group (each group 15 people). The experimental group received resilience training for 10 sessions, but the control group did not receive any training. Data were gathered by Connor-Davidson Resilience Scale (CD-RISC) and the World Health Organization Quality of Life (WHOQOL-BREF) and analyzed using SPSS 18 software and multivariate analysis of covariance and one way analysis of covariance. Findings At posttest and follow-up stages, the mean scores of resiliency and psychological, social and environmental domains of quality of life were significantly higher in the experimental group than the control group (p=0. 001), but there was no significant difference between the two groups in physical domain scores of quality of life (p>0. 05). Conclusion resiliency training can have a lasting and stable impact on improving the quality of life and resilience in prisoners of war.