This study aimed at identifying the role of Jordanian youth associations in spreading the national education and its relation to the tendency towards extremist intellectual behavior among a sample of Jordanian university students. The study population consists of (504) undergraduate students in the Jordanian universities, namely: Jordan University, Yarmouk University, Philadelphia University, and Al-Ahliyya Amman University. They were chosen in a deliberate manner. And have participations in activities organized by students' affairs deans in their universities. The reliability and validity of the study tool were verified. The results of the study showed that the role of the Jordanian youth associations in spreading the national education came within the intermediate level. The results also showed no statistically significant differences in the role of the Jordanian youth associations in spreading the national education according to the gender variable and the place of residence. There was also a strong correlation between the level of national education and the tendency towards intellectual extremism among Jordanian university students.