Abstract: The measurements and calculations have been taken on 614 greater sciatic notch (358 males and 256 females) in Chinese. They are the greatest width, the greatest height, the length segment posterior of the greatest width, the length of posterior side, the length of anterior side, posterior angle (∠A) , anterior angle (∠B) and superior angle (∠C) . The sexual discrimi-nating function, critical value and misclassified rate were calculated from the variation of ∠A and ∠C.

Key words: Greater sciatic notch; Sexual diagnosis