To provide a method for judging an oil and fat composition capable of accurately determining a content ratio of fats and oils in an oil and fat composition and a method for producing an oil and fat composition capable of producing an oil and fat composition having a desired content ratio.SOLUTION: The determination method of the fat and oil composition of the present invention is a method for determining the fat and oil composition by using two or more oils and fats selected from oils and fats A, fat B and oil / fat compositions containing the oils and fats A and the fat B by using a spectrofluorophotometer , Excitation with an excitation wavelength of 250 to 700 nm in whole or in part, and comparing respective fluorescent fingerprints obtained by measuring all or a part of the fluorescence wavelength 250 to 800 nm to characterize the fat A and / or the fat B One or more peaks are selected and the fluorescence intensity of the fat or oil composition to be judged is measured with one or more wavelengths (excitation wavelength, fluorescence wavelength) of the peak using a spectrofluorophotometer, whereby the judgment The content ratio of the fat A and / or fat B in the target fat and oil composition is determined.(FIG.【課題】油脂組成物中の油脂の含量比を精度良く判定できる油脂組成物の判定方法及び所望の含量比の油脂組成物を製造できる油脂組成物の製造方法を提供する。【解決手段】本発明の油脂組成物の判定方法は、油脂A、油脂B、及び前記油脂Aと前記油脂Bとを含む油脂組成物から選ばれる2つ以上を、分光蛍光光度計を用いて、励起波長250~700nm全部あるいは一部で励起させ、蛍光波長250~800nmの全部あるいは一部を測定して得られた各蛍光指紋を比較して前記油脂A及び/又は前記油脂Bに特徴的な1個以上のピークを選択し、分光蛍光光度計を用いて1個以上の前記ピークの波長(励起波長、蛍光波長)で判定対象の油脂組成物の蛍光強度を測定することにより、前記判定対象の油脂組成物中の前記油脂A及び/又は前記油脂Bの含量割合を判定する。【選択図】図4
