Background & Objective: The majority of cancer patients have a poor quality of life. It seems mindfulness-based cognitive group therapy can improve quality of life in these patients. Therefore this study was conducted with the purpose of evaluating the effectiveness of mindfulness-based cognitive group therapy in improving quality of life among patients with cancer. Materials & Methods: This study was a quasi-experimental research conducted by pre- and post-testing. The sample population consisted of 30 cancer patients selected by purposive sampling and randomly placed in two groups of experimental and control (15 individuals per group). All subjects completed the quality of life questionnaire in the two stages of pre-test and post-test. The findings were analyzed by the SPSS software and multivariate analysis of covariance tests. Results: The results showed that there is a significant difference between the control and the experimental group and that mindfulness-based cognitive group therapy had a significant effect in improving quality of life in the members of the experimental group (p< 0/01). Conclusion: According to the results, it can be proposed that it is necessary for therapeutic centers and support forums related to refractory patients to use mindfulness-based cognitive group therapy in their plans to improve patients’ quality of life.
