Quality detection method of oryzanol

A quality detection method of oryzanol comprises the following steps: obtaining fingerprints of an oryzanol control sample and a sample to be detected through specific chromatographic conditions, comparing the fingerprints, if the fingerprint of the sample to be detected shows 14 common peaks corresponding to the fingerprint of the control sample and the similarity of the common peaks is not less than 0.90, determining that the sample to be detected is qualified, and if the fingerprint of the sample to be detected shows 14 common peaks corresponding to the fingerprint of the control sample, determining that the quality of the sample to be detected is not less than 0.90. The chromatographic conditions are as follows: a mixed solution of a solution A and a solution B is taken as a mobile phase for gradient elution, the solution A is a mixed solution of methanol and glacial acetic acid, the solution B is a mixed solution of glacial acetic acid and water, the solution A is 65% at 0-15 min, the solution B is 35% a