The invention provides a licorice drink and a preparation method thereof, comprising the following raw materials and their weight proportions: 2-4 parts of licorice, 2-4 parts of Yizhiren, 1.5-3.5 parts of bergamot, 1.5-3.5 parts of dandelion, chrysanthemum 1-3 parts, 1-3 parts of Luo Han Guo, 1.5-4 parts of fresh pine leaves, 1-3 parts of Ligustrum lucidum, 1-2 parts of saponins, 1-2 parts of papaya, 8000-9800 parts of purified water. The above-mentioned raw materials are washed and soaked, and then boiled three times with solvents, mixed and cooled to normal temperature to obtain the finished product. According to the reasonable matching of the cold, heat and temperature of each plant raw material, the present invention makes full use of the heat-clearing effect of licorice, the lifting effect of dandelion, the calming effect of Yizhi kernel, and the heat-clearing effect of Luo Han Guo. After comprehensive compatibility, it can regulate the nutritional structure in the human body. Make the body achieve a balance of yin and yang, regulate body temperature, eliminate viruses, scavenge free radicals, etc., have the effect of detoxification and detoxification, improve human immunity, and have anti-cancer and anti-cancer effects.