目的建立适合西南地区成人的颅骨性别判定函数。方法性别明确的颅骨67个,测量颅骨最大长、颅骨最大宽、颅高等16项指标,所得数据进行统计学分析,建立单一变量及多变量性别判定方程,并对5个无名颅骨进行回带检验。结果 16项指标中有13项存在显著的性别差异,男性大于女性,单变量函数推断性别以鼻高(男78.4%,女83.3%)、颅骨最大长(男83.8%,女73.3%)准确率较高。多变量性别判定函数以颅周长、鼻高贡献最大,判定准确率男89.2%,女90.0%。结论单变量推断颅骨性别以鼻高或颅骨最大长较为理想,但以颅周长、鼻高联合推断性别准确率更高。 Objective To establish a skull sex determination function suitable for adults in southwest China. Sixty-six skull with definite sex were measured. The maximum length of skull, maximal width of skull and skull height were measured. The data were statistically analyzed. Single-variable and multivariate gender discriminant equations were established. . Results Thirteen of the 16 indicators had significant gender differences. Men were more than women. The univariate function deduced that the accuracy rate of gender with nasal height (78.4% for men and 83.3% for women) and maximal length for skull (83.8% for men and 73.3% for women) high. Multivariable gender discriminant function had the largest contribution to cranial perimetry and nasal height, with the accuracy rate of 89.2% and 90.0%, respectively. Conclusions Univariate inference of skull gender to nose height or maximum length of skull is more ideal, but the craniofacial circumference and nasal height infer gender accuracy even higher.