Abstract:Near-infrared spectroscopy combined withthe Euclidean distance method or factorization model was used to establish a rapid and accurate method for the detection of adulterated beef，thus providing a powerful detection method for ensuring the quality and safety of beef products.Beef and adulteration meat （mixed with pork and chicken）were uniformly ground to the same degree，and adulterated meat was prepared with a gradient increment of 10%.The adulterated meat was divided into 10 samples（10%to 100%）.Using in single channel，spectral range of was 12 000 cm-1-4 000 cm-1 and the scanning frequency was 64.Several characteristics of the band was 7 351.92 cm-1-6 824.83 cm-1，5 578.24 cm-1-5 075.21 cm-1.Under the conditions of 1 and 1nd or 2nd derivative + vector normalization + 9-point smoothing preconditions，The results showed that the factorization method had a discriminant rate of 94 % and 96.67 %；Factorization methods could be used to qualitatively identify adulteration of beef.