Insomnia is a type of disease characterized by a lack of nourishment of the mind and spirit or disturbance of the mind and spirit due to internal injury from emotion, diet, illness and old age, deficiency of endowment, weakness of the heart and timidity, etc. It is characterized by the inability to get normal sleep. The main manifestation is the lack of sleep time and depth, as well as the inability to eliminate fatigue, restore physical strength and energy, the lighter the difficulty in falling asleep, or sleep but not sound, sometimes sleep and wake up, or wake up and can not sleep again, the heavier the sleeplessness all night. Insomnia is one of the common clinical diseases. Although it is not a critical disease, it often hinders people’s normal life, work, study and health, and can aggravate or induce palpitation, chest paralysis, vertigo, headache, stroke and other diseases. Stubborn insomnia brings long-term pain to patients and even forms dependence on sleeping pills, which in turn can cause medically induced diseases. Chinese medicine is popular because it can significantly improve sleep conditions by adjusting the functions of the internal organs, qi, blood, yin and yang, and does not cause drug dependence or medical disorders.