Aims: Sexual satisfaction as one of the aspects of sexual health is vital in maintaining the couple's relationship and their quality of life. The present study was designed to investigate the factors predicting sexual satisfaction based on IMB model among Iranian men. Instrument & Methods: This was a cross-sectional descriptive-analytical study. 362 men living in Sanandaj, Kurdistan-Iran, with a marriage age of less than five years, were systematically included in the study. Data collection tools were Larson sexual satisfaction questionnaire, sexual health questionnaire based on IMB model constructs and men's sexual function questionnaire. Data analysis was performed at a significant level of 0.05 and with SPSS 20 software. Findings: The results indicate that 1.4% of participants have no sexual satisfaction at all, 43.1% have poor sexual satisfaction, 53.9% have moderate sexual satisfaction and 1.7% have high sexual satisfaction. The regression model showed that the level of education, information and motivation of the IMB model were predictors of sexual satisfaction with 13% variance (F = 19.48, p = 0.001, r = 0.13, r2 = 0.37). Conclusion: The findings of this study showed that sexual dissatisfaction is related to the level of education, information and motivation of men about sexual issues. Therefore, an educational intervention based on the IMB model is proposed in promoting sexual satisfaction of men and subsequently couples.