The theoretical importance lies in the significance of the studied topic and the sample used. This research has not been extensively studied in many Arab environments, especially in the Sultanate of Oman. Therefore, it will provide a coherent theoretical framework for understanding the nature of the relationship between the study variables and provide an analytical view of the reality of problems resulting from poor marital decision-making and its relationship to marital adjustment. Furthermore, this research provides an educational and scientific benefit by adding new literature and theoretical information related to its variables, collecting this information, and making it available to researchers and interested parties. Despite the numerous studies in the Arab world in the field of social support and marital adjustment, the field of social support related to the decision-making of marriage is still limited in the local community due to the lack of research, except for rare cases (to the best knowledge of the researchers).