Abstract: The X-ray films o f sponge part in the superior portion of 167 normal femora on patients and 36 buried femora were taken and measured. Four formulae for age determination w ere produced by statistic analysis. The results show that the length and indices of the sponge pa rt in the superior portion of the femur has negative interrelation with age. It is correct and reliable for age determination.

Key words: Femur, Osteometry , Age Determination, Modern Chinese