The invention relates to traditional Chinese medicine oral liquid, in particular to traditional Chinese medicine oral liquid for treating and preventing influenza. The oral liquid is prepared from the following crude traditional Chinese medicines and pharmaceutically acceptable carriers: 245-980g of holly root, 245-980g of berchemia lineate, 245-980g of rose apple, 98-392g of fragrant glorybower root leaf and 245-980g of Pandanus tectorius.