Family is the fundamental unit in building strong and cohesive societies. Therefore, it is essential to provide the family with a range of mechanisms and skills that help to fulfill its mandated role by immunizing its children from destructive beliefs. Thereby, the family plays a pivotal role in embodying what is known as intellectual security in society, which is a key factor in flourishing society's progress and prosperity. In addition, It plays a decisive role in society cohesion and pursuit to achieve intellectual security to its children. Therefore, this study aims to investigate the educational role of the family in enhancing the intellectual security of the children in the Saudi society. The sample consisted of (336) parents, aged between (30-60 years), (mean = 44.04, S.D. =7.42) living in Saudi Arabia. We used the questionnaire developed by researchers, consisting of (36) phrases distributed in three dimensions. The results indicated that the role of parents was in a high level in all dimensions of the questionnaire, Especially, Religious and moral dimension. In addition, Data analysis shows the importance of the educational role of the family in reinforcing the intellectual security of its children in the Saudi society. Based on these results, this study demonstrated the importance of encouraging responsible persons to consider this vital issue with great interests and awareness, and provide full support to Saudi families, helping them to achieve the intellectual security for their children, by increasing security awareness and explaining the dangers of extremism and terrorism to the security. Furthermore, strengthen the intellectual programs, and reduce the obstacles faced by families, and its negative consequences for society.