The topic of psychotherapy often brings two feelings: mystery and skepticism. Some people have a respectful attitude toward psychotherapists, as if the secrets of their hearts will be exposed through their demeanor and behavior; others believe that psychotherapy is not credible at all, and that every psychotherapist in their eyes is like a fraud, just using lip service to cheat the money and time of the seeker. But do we know what psychotherapy is? Psychotherapy is the process of changing the patient’s mental activity through verbal communication and other psychological techniques based on a close doctor-patient relationship in order to treat the disease. The object of psychotherapy is the psychological problems and psychological disorders of healthy people and patients. The aim of psychotherapy is to solve the current pressing problems of depressed patients, to provide support and to relieve symptoms. It is also important to look to the future and reshape the personality system, including changes in the cognitive evaluation system and coping styles to prevent the recurrence of similar problems. As can be seen, psychotherapy should be implemented primarily by medical personnel with extensive psychological expertise and skills, and it has the same scientific nature of the medical profession as other treatment modalities. When psychotherapy changes the psychological state of the patient, eliminates or alleviates his inner pain, and changes his attitude and behavior toward people and things, it also serves as psychotherapy. So, how to judge the effectiveness of psychotherapy? The assessment of the efficacy of psychotherapy must revolve around the goal of the treatment, and it is meaningless to assess its efficacy without considering the goal of the treatment. The evaluation of the efficacy of psychotherapy for anxiety disorders generally includes: 1) Initial effect: mainly the reduction of symptoms, such as anxiety, depression, fear, tension, anger, pain, palpitation, chest tightness, insomnia and other psychological or physical symptoms. (2) Medium-term effect: mainly for the improvement of behavioral performance, such as avoidance, compulsion and other undesirable behavior reduction and self-control, interpersonal relationships to improve, etc. (3) Later effects: mainly for the change of personality performance, personality becomes more mature, and can more effectively apply appropriate methods to deal with frustration and difficulties. For example, the attitude towards people, the basic view of life, and the knowledge and understanding of the self are changed. The efficacy of experienced psychotherapists is also significantly higher than that of general support or counseling. The ease of efficacy is also related to the goals of treatment, with symptom improvement being the easiest to achieve, followed by behavioral change, and personality change being more difficult. The clinical efficacy of psychotherapy for anxiety disorders appears to be positive, not only in relieving symptoms and shortening the recovery process, but also in helping patients improve their adjustment and psychological coping skills and preventing relapse.