Objective:To develop an HPLC method for determination of Buddleoside from Flos Chrysanthemi Indici. The result was compared with IR spectrums. Method:Flos Chrysanthemi Indici from various habitats were used as test sample and HPLC was used. The chromatographic separation was performed on a Diamonsil C18(4. 6 mm × 250 mm,5 μm) column gradient eluted with a mobile phase of 0. 5% H3PO4(A)-acetonitrile(B),B changed from 10% to 20% in the first 10 min,in the next 20 min,when B changed from 20% to 30% ,and in the...