The invention discloses a manufacturing method for a pleurotus eryngii dietary fiber beverage and belongs to the field of beverage processing. The manufacturing method for the pleurotus eryngii dietary fiber beverage is characterized by adopting the processing technological processes of 1, stock solution preparation including a stock solution A preparation comprising pleurotus eryngii stem selecting and washing, precooking, pulping, rough filtrating and stock solution A obtaining, stock solution B preparation comprising barbary wolfberry fruit roguing and soaking, crushing, water extracting, rough filtrating and stock solution B obtaining, and stock solution C preparation comprising carrot washing and peeling, softening, pulping, rough filtrating and stock solution C obtaining, and 2, finished product preparation comprising stock solution A, stock solution B and stock solution C blending, degassing, homogenizing, filling, sterilizing and finished product obtaining. The manufacturing method for the pleurotus eryngii dietary fiber beverage has the advantages that the pleurotus eryngii dietary fiber beverage is orange-yellow in color and lustre, capable of achieving specific compound flavor of pleurotus eryngii, carrots and barbary wolfberry fruits, smooth and lubricant in mouthfeel and palatable in sour and sweet tastes; the pleurotus eryngii dietary fiber beverage is rich in nutrition and also contain a mass of dietary fibers, gastrointestinal motility can be promoted, the immunologic function of a human body can be improved, the fat removing and depressurization, digestion promoting and intestines and stomach moistening and beautifying and cancer resisting functions are achieved, and the pleurotus eryngii dietary fiber beverage is delicious food with the very high nutritional value.