The invention belongs to the field of solid beverages, and particularly relates to a radix puerariae and folium mori composite solid beverage and a preparation method thereof. The solid beverage mainly comprises the following components: radix puerariae powder, folium mori powder, rhizoma polygonati powder, tremella powder, tuckahoe powder, seabuckthorn fruit powder, white gourd powder, 1-6 partsof bitter gourd powder, fragrant solomonseal rhizome powder, dark plum powder, lily powder, rhizoma dioscoreae powder, radix glycyrrhizae powder, fructus lycii powder, semen persicae powder, white granulated sugar, and maltodextrin. When the composite solid beverage is used for treating diabetes, a plurality of factors such as the causes of diabetes and the generation of complications are comprehensively considered, while blood glucose is reduced, synchronization treatment is carried out aiming at the causes and complications of the diabetes, comprehensive rehabilitation is carried out, by using dominant ideas mainly including integral diet therapy regimen combined with natural rehabilitation of a human body, comprehensive conditioning is finally achieved, the aim of comprehensive rehabilitation of the human body is achieved, and the health balance of the human body is achieved, the development of diabetes condition can be effectively inhibited, reversibility is achieved, the lives ofpeople are greatly prolonged, and happiness is increased.