Nutrients in meat from Mongolian livestock is various and one of them is conjugated linoleic acid (CLA) in meat. CLA is a name of components which are geometrical and organizational isomers (c18:2) of linoleic acid. Recently, there are over 30 isomers of CLA. Two isomers (cis-9, trans-11 and trans-10, cis-12) of them have great importance in health and these 2 isomers are 80 percent of all isomers. CLA is produced by isomerization and biohydrogenation processes of rumen bacteria in ruminants. e CLA content of Mongolian goat meat and beef was determined using gas chromatography in accordance with animal age and meat location. Meat CLA content was 7.5 mg/g in 2-year old goat and 6.4 mg/g in adult goat. In 2-year old goat, CLA content was highest in front leg muscle (8.8 mg/g) and lowest in hind leg muscle (6.5 mg/g). In cattle, CLA content was 5.36-5.86 mg/g in muscle tissue and 6.0-7.3 mg/g in subcutaneous fat. Among muscle tissues, CLA content was higher in backstrap and hind leg muscle, and lower in front leg muscle