摘要:Social networks are a new form of addiction to technology and are beginning to take place in the moroccan society in the last decades, especially among children and adolescents. Furthermore the Nomophobia is a new form of addiction to new generations of mobile phones. Because of the importance of their speed spread and their influence on the person's future and interpersonal relationships, we conducted a study to calculate the degree of Nomophobia in adolescent population. It is through the establishment of a questionnaire for a sample of 541 adolescents including 298 girls and 243 boys of young Moroccans and a test on Nomophobia NMP-Q. The statistical result stated that 69.1% of girls and 63% of boys have Nomophobia in a moderate and severe state, and that the Smartphone is more solicited than the laptop with a negative correlation between school performance and the score of Nomophobia. Thus, poor school performance and mental disorders in adolescents can be explained by taking Nomophobia.