This study aimed to examine the effects of nomophobic behaviors of university students on their intellectual thinking tendency in their daily lives. This study used a descriptive and cross-sectional study design. The study was conducted between May and June 2020 with the online participation of 448 university students in Turkey. The study sample consisted of 448 students who met the inclusion criteria. A statistically significant relationship was found between the sub-dimensions of the Nomophobia Scale and intellectual thinking disposition (p < 0.05). The stepwise regression analysis conducted to examine the effects of independent variables on the sub-dimensions of the scales showed statistically significant correlations. Nomophobia prevents students from communicating effectively with their friends and intimate surroundings, leads to misunderstandings, prevents intellectual development and negatively affects their overall lives. The Intellectual thinking tendency in university students is affected by nomophobia. There is a significant relationship between nomophobia, which is felt when there is no mobile phone, and the tendency to think intellectually. It has long been known that nomophobia is an extremely harmful condition. With this study, it has been proven that it causes high intellectual harm to young people.