Introduction: The quality of life of patients with type 2 diabetes is affected by several variables that from most important can be noted perceived social support, psychological hardiness and family communication patterns. This research aimed to investigate the relationship between perceived social support, psychological hardiness and family communication patterns with quality of life among patients with type II diabetes.

Methodology: This is a descriptive analytical study of correlation type. The statistical population included all patients with type 2 diabetic that referred to health care center of Varamin city in 2015 year. Totally 190 patient were selected by simple randomly sampling method. All of them completed the questionnaires include perceived social support (PSS), psychological hardiness (PH), family communication patterns (FCP) and quality of life (QL). Data was analyzed using Pearson correlation and multivariate regression and with using of SPSS-19 software.

Results: The findings showed a positive and significant relationship between perceived social support, psychological hardiness and conversation communication pattern with quality of life among patients with type 2 diabetes and a negative and significant relationship between conformity communication pattern with quality of life among patients with type 2 diabetes. In a one predicted model, perceived social support, conversation communication pattern, psychological hardiness and conformity communication pattern predicted 54/7 percent of variance of quality of life among patients with type 2 diabetes (P&le0/01).

Conclusion: Regarded to results of this study suggest that therapists, counselors and clinical psychologist consider the symptoms of these variables and design appropriate programs to improve the quality of life of patients with type 2 diabetes.