Dazao belongs to a traditional Chinese medicine with clinical efficacy of nourishing blood and calming the mind, which can be used to treat insomnia caused by deficiency of qi and blood, but the effect of the drug alone is relatively mild and needs to be treated with evidence-based formulae under the guidance of a doctor, for example, Gui Shen Tang can be used to treat insomnia, and the TCM evidence needs to belong to the type of deficiency of both qi and blood. Insomnia is a very common clinical disease and is one of the most common types of sleep disorders. Patients with insomnia should first take oral medications as prescribed by their doctors for intervention. In addition, patients should also try to relax and exercise properly, do not be too nervous, and not overly concerned about insomnia, patients should also eat a light diet, not to eat spicy, stimulating, greasy things and so on.