The invention discloses pawpaw beverage and a preparation method thereof. The pawpaw beverage is made from main components and auxiliary components, wherein the main components comprise pawpaw, water, citric acid and cane sugar; and the auxiliary components comprise pectin, xanthan gum, CMC-Na, lemon yellow and carmine. The preparation method comprises the steps: peeling fresh pawpaw, removing seeds, cleaning and crushing; weighing all the materials except the lemon yellow and the carmine according to production formulation and putting the weighed materials into a container; adding enough water and stirring evenly; homogenizing and boiling; and then coloring with the lemon and the carmine; and canning and sterilizing to obtain a finished product finally. The invention has the advantages that 1, the processing method is simple, and the materials are easy to get, therefore the pawpaw beverage is suitable for production and processing of small and medium enterprises; and 2, the pawpaw beverage contains the pawpaw which contains papain, carpaine, chymopapain, carbohydrate, protein, fat, various vitamins and various amino acids necessary for a human body. Therefore, the pawpaw beverage has the functions of reinforcing the stomach and promoting digestion, promoting lactation, effectively supplementing nutrients of a human body and enhancing the disease resisting capability of a human body, as well as insecticidal and antiphthisic functions,.