Introduction: The aim of this study is �to investigate the role of positive and negative emotions and problem solving styles in predicting diabetic patient's life satisfaction.

Methodology: This research is a descriptive analytic study in type of� correlation. The study population included all diabetic patients who refers� to sannadaj hospitals and health centers in 1392. The samples were included of 100 patent(60weman, 40 man) who had been selected� by simple� convenience method. research tools were included of questionnaire positive and negative emotion, problem solving styles and life satisfaction. For data� analysis using Pearson's correlation coefficient and multiple regression analysis.

Results: The data analysis showed that positive emotions and positive problem solving styles� have positive significant relationship with life satisfaction (P<0/001)؛ and negative emotion have a negative and significant (p<0/001) with life satisfaction . but don&rsquot found� relationship between the life satisfaction and negative problem solving styles (p<0/001).

Conclusion: In general we can say that positive emotions and positive problem solving styles� have relationship with higher level of� physical and mental adaptability and stressful life events and life satisfaction and higher levels of performance ، therefore affect the quality of life and mental health patients.