Objective To study the cranial characteristics of normal young people living in modern Tibetan.   Methods With the voluntary participation of Tibetan young people as the research object. Using Siemens MAGNETOM ESSENZA 1.5T Magnetic resonance scanner, and using 3D-fSPGR sequence scanning, effective investigation of 93 cases, age 18-44 years old, average age (28.52±8.76) years was carried out. There were 37 male cases and 56 female cases. Manual measurement of maximum cranial length, maximum cranial breadth and basi-bregma heigh, and calculation of cranial index, cranial length-height index Ⅰ, cranial breadth height index were obtained.   Results The difference between male and female maximum cranial length was statistically significant (t=7.304，P<0.01), the difference of maximum cranial breadth was statistically significant (t=5.780，P<0.01), and the difference of basi-bregma heigh was statistically significant (t=5.107，P<0.01). By Spearman correlation analysis, the female maximum cranial length was positively correlated with the age (r=0.264，P<0.05), and the cranial length-height index Ⅰ was negatively correlated with the age (r=-0.303，P<0.05).   Conclusion The cranial index of normal young people in modern Tibet is divided into male and female with brachycrany, male and female with hypsicrany of cranial length-height index I, the main cranial breadth-height index is dominant in male with tapeinocrany, female are dominated by metriocrany.