The preparation method of Panicum half-summer soup includes soaking, boiling over high heat, and slow cooking over low heat. Panicum half-summer broomcorn millet soup production method is half-summer, broomcorn millet soaked in water for about half an hour, first boiled over high heat, after a small fire to cook the soup is concentrated to the right amount can be turned off the fire. Half-summer broomcorn millet soup can dissolve phlegm, attracting yang into the yin to tranquilize the spirit, “insomnia, the first formula” of the reputation. In the formula, half-summers dry dampness and resolve phlegm (to remove phlegm in the body by drying dampness) and tranquilize the mind, and broomcorn millet can strengthen the spleen, stop diarrhea, resolve phlegm and tranquilize the mind. It can be used to treat chronic insomnia caused by phlegm-dampness internal obstruction (phlegm and dampness obstructing the internal organs and meridians). It is recommended that patients use the medication under the guidance of a doctor, do not take the medication on your own to avoid delays.