Astringency of the tongue is mostly caused by dry mouth and tongue, which mostly indicates that there is fire in the upper jiao of the human body, and can be treated by considering the application of Chinese medicine, such as Liu Wei Di Huang Wan, Jin Jin Yu Liquid Tang, and Han Xia Di Xin Tang. In addition to Chinese medicine, modern western medicine, such as multivitamins and antibiotics, can also be considered in clinical practice. If the tongue is astringent and accompanied by other symptoms, relevant clinical tests, such as routine blood tests and biochemical tests, should be done to determine the cause of the tongue astringency, so that treatment can be targeted.