Hydrolyzed Vegetable Protein(HVP) was a typical adulterated compound that was used as an inexpensive protein by criminals to increase the nitrogen content in milk.Different concentrations of HVP adulterated samples were prepared in this study and were scanned directly with the near-infrared spectrometer(NIRs).Samples pretreated with trichloroacetic acid were analyzed by Transmission Analyzer,and the quantitative analysis models were established by TQ software to compare the difference between the two method...