Method for identifying quality of bird's nest

The invention discloses a method for identifying the quality of a bird's nest, which identifies the quality of the bird's nest by using a high performance liquid chromatography triple tandem quadrupole mass spectrometry (HPLC-QQQ) to determine the dissociative sialic acid content of the bird's nest, and comprises the steps of sample treatment, high performance liquid chromatography separation andmass spectrometric detection. The method has the advantages of high speed, accuracy and high sensitivity, thereby being a good method for identifying whether the bird's nest is true or not and whether the quality is good or not. Compared with the traditional identifying method based on appearance and properties, the method of the invention is more objective and more scientific.