The invention provides radix
codonopsis and radix astragali oral liquid for
spleen-
lung qi deficiency and a preparation method and application thereof, and belongs to the field of
traditional Chinese medicine preparations. Radix
codonopsis and radix astragali are added with water for heating
reflux extraction, and an extracting solution is collected; filtering the extracting solution to obtain a clear filtrate; concentrating the filtrate to obtain fragrant paste; adding
xylitol into the fragrant paste, and stirring and dissolving to obtain liquid
medicine; after finely filtering the liquid
medicine, filling and sealing the liquid
medicine into an oral liquid container; and performing
terminal sterilization on the filled oral liquid to obtain the Shenqi oral liquid for
spleen-
lung qi deficiency. The
xylitol is used for replacing rock candy, so that the taste modifying requirement is met, more importantly, the product is suitable for diabetics and people needing to control
sugar intake, and the applicable people are remarkably expanded; meanwhile, preservatives are completely eliminated, the worry of consumers on chemical additives is eliminated, the product is more natural,
safer, accurate in dosage, convenient to open and easy to carry and take, and the medication compliance of patients, especially outgoing patients, is greatly improved.