Interventions for insomnia mainly include pharmacological treatment and non-pharmacological treatment. For patients with acute insomnia, it is advisable to use pharmacological treatment early. For patients with subacute or chronic insomnia, whether primary or secondary, psychological behavior therapy should be used in conjunction with pharmacological treatment. The essence of psychological behavior therapy is to change the patient's belief system and enhance their self-efficacy, thereby improving symptoms of insomnia. To achieve this goal, the involvement of professional physicians is often necessary. Psychological behavior therapy is effective for both primary and secondary insomnia in adults, and typically includes sleep hygiene education, stimulus control therapy, sleep restriction therapy, cognitive therapy, and relaxation therapy. These methods may be used alone or in combination for the treatment of primary or secondary insomnia in adults.