Abstract: In order to detect the feasibility of beef adulteration with electronic nose,the beef,pork,chicken and chicken skin sample were detected by electronic nose. Principal component analysis( PCA) and linear discriminant analysis( LDA) were employed according to the data obtained. The results indicated that electronic nose could well discriminate the beef with different ratio adulteration of pork,chicken breast and chicken skin,moreover,the recognition effect of LDA was better than PCA.