Abstract: OBJECTIVE Use of different lipids in the chemical composition to identify Saigae Tataricae Cornu and its adulterants. METHODS The lipids were extracted by solvent method, then esterified, and identified by capillary gas chromatography-computer technique. RESULTS Namely 47 peaks had been identified out from Saigae Tataricae Cornu and its adulterants, three of them for the relative contents of more than 5% of the total peak. And Saigae Tataricae Cornu of the three peaks were of more than a certain rule. Clustering method using the system could be divided into five kinds of corner of Saigae Tataricae Cornu and other Class 2. CONCLUSION The ratio of GC peaks can be used to identify Saigae Tataricae Cornu.