NOVELTY - An Astragalus herbs and aqueous extract identifying method involves taking Astragalus herbs and medicinal powder and adding 80 ml water. Boiling step is carried out at low temperature and filtered. The filtrate is evaporated to dry. Concentrated aqueous ammonia is added to the residue. n-Butanol is added and ultrasonic treatment is carried out. Methanol is added to evaporated residue. Astragaloside reference substance is taken. The reference solution and the test solution are added to same silica gel GF254 thin layer chromatography plate.    USE - Method for identifying Astragalus herbs and aqueous extract.    ADVANTAGE - The method enables identifying Astragalus herbs and aqueous extract with improved quality, controllability and detection efficiency in a simple, cost-effective and eco-friendly manner.    DETAILED DESCRIPTION - An Astragalus herbs and aqueous extract identifying method involves taking Astragalus herbs and 2 g medicinal powder and adding 80 ml water. Boiling step is carried out at low temperature for 30 minutes and filtered. The filtrate is evaporated to dry. 0.5 ml Concentrated aqueous ammonia is added to the residue. 10 ml n-Butanol is added and ultrasonic treatment is carried out for 20 minutes to obtain butanol solution. 0.5 ml Methanol is added to evaporated residue to obtain test solution and reference drug. Astragaloside reference substance is taken. The reference solution and the test solution in an amount of 5-6 mu l are added to same silica gel GF254 thin layer chromatography plate containing chloroform-ethyl acetate-methanol-concentrated ammonia expand agent with a volume ratio of 1:2:4:0.5. Hot air drying step is performed. Test products are put in UV light 254 nm and 365 nm. 10% Sulfuric acid solution is sprayed and heated at 105 degrees C to spot color clear, sunlight and UV light of 365 nm. Thin layer chromatography identification process is performed by taking proper amount of aqueous extract of Astragalus, weighing 1 g, 1.5 ml concentrated ammonia, shaking, adding 10 ml butanol, ultrasonically treating for 30 minutes, pouring butanol solution, evaporating, dissolving the residue in 0.5 ml methanol, as the test solution, placing 5-8 mu l test solution, medicine solution and reference solution in same silica gel GF254 Thin layer chromatography plate containing chloroform-ethyl acetate-methanol-concentrated ammonia expand agent with a volume ratio of 1:2:4:0.5, drying, placing test products under UV light of 254 nm and 365 nm, spraying 10% sulfuric acid solution, heating at 105 degrees C to clear spot color and identifying reference substance and herbs chromatography corresponding position, respectively, where the fluorescence is same color spots and main spots.