The invention provides a method for extracting effective ingredients in amber through ultrasonic-assisted extraction and supercritical CO2
gradient elution, and belongs to an extraction technology adopting a high-strength and high-energy ultrasonic-assisted extraction and supercritical CO2 fluid
gradient elution. The method comprises the steps as follows: the amber and inactive substances are mixed and added in a
pulverizer and pulverized into a mixture; the mixture is added into an ultrasonic-assisted extraction device, ethyl
alcohol is injected into the ultrasonic-assisted extraction device, the extraction temperature, time and energy frequency of the ultrasonic-assisted extraction device are set, an ethyl
alcohol extract liquor is obtained and taken out, ethyl
alcohol is recovered, and an extract is obtained; and the extract is added into a supercritical CO2 extraction device, pressure and
temperature gradient change of the supercritical CO2 extraction device is set, and amber acid,
abietic acid, d-
pimaric acid and
essential oil are extracted. Compared with the prior art, the method is simple to operate, safe, reliable, low in cost, energy-saving and environment-friendly, and meanwhile, the obtained amber product is high in purity, good in quality and applicable to preparation of drugs, food and drinks.