Symptom description: * * *, admitted to Beijing Normal University with excellent results in 2006, but failed to meet the self-expectation at the beginning of undergraduate study. Instead, he made rapid progress in online game technology and found satisfaction in the game. After a period of time, he had a strong desire and impulse for online use and games, reduced communication with his classmates, became introverted, sometimes felt inferior and depressed, even confronted his parents, and knew something about mathematics. After being persuaded by his classmates and the class teacher, he stopped playing online games for a period of time, but he appeared unwell, upset, irritable, inattentive in class, sleep disorder and other reactions, and then became addicted to online games again. The internet has become a way for him to avoid problems or alleviate bad emotions. Problem diagnosis: Internet has become a modern tool that people rely on more and more. It greatly improves people's study and work efficiency, but it also has some negative effects, such as some netizens' unrestrained use of the Internet and their addiction to games, which affects their study and work, damages their physical and mental health and even leads to sudden death. Goldberg first proposed internet addiction; IAD), Young defines IAD as impulse control disorder without anesthesia, which is a compulsive behavior similar to compulsive gambling. Internet addiction behavior has the characteristics of addiction, and similar measures can be taken to treat other abnormal behaviors to interfere with Internet addiction behavior. Internet addiction will have a serious negative impact on society, occupation, education, marriage and interpersonal relationships, and Internet addiction may also be a factor leading to aggressive behavior [17]. Once addicted to the online world, it will lead to the breaking of daily life rules, sleep disorders, loss of appetite, serious nervous system disorders, decreased immune function, cardiovascular diseases, depression and eye diseases, and even more serious sudden death [20]; Emotionally and personally, the research of Turkle [2 1] shows that students' excessive online dating will lead to social isolation and social anxiety. Let the intervenees realize the great harm of internet addiction and provide guidance for cognitive therapy. The factors that exclude Internet addiction are male, habitual skipping breakfast, unhealthy psychology, lack of social support and anxious personality characteristics [10]. In the course of treatment, attention should be paid to gender differences, living habits, family and social support, mentality, etc., so as to provide reference for formulating intervention programs suitable for each intervened person. I hope it helps you.