Purpose: This study was designed to identify whether alcohol use predicts marital stability and to investigate the mediating effects of marital communication and social support in international married Korean men who lived in a rural area. Methods: The participants were 200 of the international married men. The data were collected during June, 2010. The instruments were Alcohol Use Disorders Identification Test (AUDIT), Marital Instability (MI), Marital Communication (MC), Social Support (SS). Data were analyzed using descriptive statistics, Pearson correlation coefficients, and stepwise multiple regression, Results: The mean score for AUDIT was 9.6, and alcohol use was negatively correlated with marital stability, marital communication and social support. We also found that marital communication fully mediated the association between alcohol use and marital stability, while social support did not mediate this association. Conclusion: The outcomes of this study indicates a need to develop intervention strategies and education programs that include emphasis on moderate drinking and communication skills for couples in international marriages.