A method for extracting high-purity naringenin by taking pumelo peel as the raw material comprises the steps of (1) water extraction: dried pumelo peel is smashed, heated, extracted and filtered, and a naringin extract is obtained; (2) membrane filtration and concentration: the naringin extract is filtered by a ceramic membrane and concentrated, and a naringin concentrated solution is obtained; (3) pressurization hydrolyzation: acid is added, heating, pressurization hydrolyzation, cooling to room temperature and filtering are performed, a filter cake is washed by water to be neutral, the filter cake is dried, and a naringenin crude product is obtained; (4) refining: the naringenin crude product is heated and dissolved in a water solution with lower alcohol, cooling crystallization and drying are performed, the filter cake is dried, and a naringenin fine product is obtained. The naringenin fine product prepared with the method is in a white crystal powder form, the purity of the obtained naringenin can be as high as 99.67%, the impurity content is low, and the final yield of the naringenin is larger than 85%; according to the method, the naringin is not required to be separated or purified, the yields of the naringin and the naringenin are high, the production cost is low, and the method is suitable for industrial production.