Method and device for identifying glycopeptide segment

The invention discloses a method for identifying a glycopeptide segment, which comprises the following steps: filtering a mass spectrogram; acquiring a single-charge mass number; constructing a mass number network; and retrieving a theory library. The invention also discloses a device for identifying the glycopeptide segment, which comprises a mass spectrogram filtering unit, a single-charge massnumber acquisition unit, a mass number network construction unit and a theory library retrieving unit. Compared with the conventional method for identifying the glycopeptide segment, the identification method and the identification device can efficiently acquire more accurate identification results in which false positive results are obviously reduced.