There is no clinical evidence that mulberry leaf tea has an effect on patients with urinary protein, it is recommended to use under the guidance of a professional physician to identify the evidence. Mulberry leaves are the dried leaves of the mulberry plant of the Morusaceae family, cold in nature, bitter and sweet in taste, belonging to the lung and liver meridians, with the efficacy of evacuating wind-heat, clearing the lungs and moistening the dryness, and clearing the liver and improving the eyesight (clearing the liver fire to promote the restoration of eyesight). Mulberry leaf is used for fever, dry pharynx and sore throat, fever and headache, sweating and bad wind, cough and chest pain caused by wind-heat and cold; it can also be used for dry cough without phlegm, dry pharynx and thirst caused by dryness of the lungs; or redness and swelling of the eyes caused by wind-heat and hyperactivity of the liver (liver yang is excessive, causing dizziness, dizziness, headache and other symptoms). The adverse reactions and contraindications of this drug are not clear. Tea replacement drinks can play a limited medicinal effect, can not replace the drug treatment of disease. If there is a need for medication, it is recommended that it be used under the guidance of a professional physician, not blindly self-medication.