As we increasingly apply cognitive behavioral therapy in our work instead of just treating depressed and anxious patients with medication, we feel more and more impressed and find that cognitive behavioral therapy is a good treatment method. Domestic and international research and practical experience have proven that cognitive behavioral therapy is highly effective and can prevent relapse. The theoretical model of cognitive-behavioral therapy is that it is not the event or situation itself that triggers our suffering, but how we perceive it; and that thinking, emotion and behavior are mutually influential. Therefore, by changing our cognition (thinking) or behavior we can improve our emotions, and even by changing our personality and perspective, ultimately to prevent relapse of the disease. Therefore, it is recommended that more patients try cognitive behavioral therapy approaches. Such a theoretical model seems simple, but it requires close cooperation between the patient and the doctor and gradual treatment to be effective. Treatment needs to be done once a week for 45 minutes for about 12-16 sessions.