The invention discloses a manufacturing method of a bamboo leaf beverage, and belongs to the field of beverage manufacture. The bamboo leaf beverage is prepared from raw materials of bamboo leaves, licorice, chrysanthemum, fruit juice and crystal sugar or honey, wherein a weight ratio of the raw materials is 10: 2: 2: 5. The manufacturing method of the bamboo leaf beverage comprises the following steps of 1, mixing well bamboo leaves, licorice and chrysanthemum according to a weight ratio of 5: 1: 1, putting the mixture into cold water, boiling the solution obtained by the previous step until the volume of the solution is half of the original volume, and adding water until the volume of the solution is equal to the original volume, 2, boiling until the volume of the solution is three fifths of the original volume, adding water until the volume of the solution is equal to the original volume, and repeating the step 2 twice, and 3, adding crystal sugar or honey into the solution obtained by the step 2, cooling, filtering, and carrying out bottling. The manufacturing method of the bamboo leaf beverage has the advantages of simple processes and easy operation. The bamboo leaf beverage has effects of refreshing the brain and improving eye sight, clearing heat and purging fire, relieving restlessness, generating body fluid, and promoting urination. Therefore, the bamboo leaf beverage is a good functional beverage.