The invention discloses a method of measuring anthocyanins in ornamental Chinese flowering apple and belongs to the field of flower measurement. The method includes the steps of 1, placing leaves of ornamental Chinese flowering apple which is fast-frozen with liquid nitrogen into a mortar, adding silica sand and insoluble PVPP, and adding liquid hydrogen before grinding to obtain powder; 2, transferring the powder into a test tube, adding anthocyanins extract, performing ultrasonic extraction at 45 DEG C for 60 minutes to obtain extracted anthocyanins liquid; 3, purifying the extracted anthocyanins liquid, centrifuging at the speed of 12000/m for 3 minutes to obtain supernate, and loading the supernate in an Agilent feeding bottle for HPLC detection; 4, feeding a sample, subjecting the Agilent feeding bottle to HPLC-DAD, and acquiring results of measurement of anthocyanins in ornamental Chinese flowering apple. The method has the advantages that extraction time is short, less than 2h, the problem that measurement results are affected after the extract is placed overnight for a long period of time is solved, and in terms of computer practice, time is saved greatly and unnecessary waste of reagents is reduced.