Abstract: Objective To understand the genetic characters ofMongolian，s head face.Methods　Nine genetics indexes, includingmongoloid fold, eyefold of the upper eyelid, front tooth type, nasal profile, nostril form, chin projection, lobe type, hair pointof the forehead and hair form were investigated for208 middle schol students(105 males and 103 females) inMongolian nationality by using cluster random samplingmethod.Results　(1)The rate ofMongoliafold is 89.5%, the rate of eyefold of the upper eyelid is 91.4%, the rate of shovel-shaped front tooth type is96?19%, the rate of umbonate nasal profile is32.4%, the rate of wide nostril is 80%, the rate of protrudingchin is 32.4%, the rates ofear lobe is76.2%, the rate ofpointed hairpointon forehead is21% and the rateof curly hair form is7.7% inMongolian nationality; (2) No significant sexual diffrernce was found in the frequencies of 7 genetics indexes ; (3)These nine indexes showed no correlations.Conclusion；（4）There are differencesbetweenMongolian nationality and the Mongolian groups in Inner Mongolia area.

Key words: mongoloid fold, eyefold of the upper eyelid, front tooth type, nasal profile, Mongolian nationality