Abstract: Objective To discuss the sexual dimorphism of the related variables of scapulas and humeri. Method Fifteen variables of scapulas and humeri of the twenty-six adult Macaca mulatta （female 16， male 10） in Taihang Mountains were measured and carried out SPSS 11.0 One-Way ANOVA, Bivariate correlations and allometry analysis. Result （1） there are nine variables which had statistically significance in sexual dimorphism； （2） the results of bivariate correlations and allometry analysis showed that the variables of sexual difference had different correlation with weight； It was found that the variables that were non-significantly or negatively correlated with weight corresponded to negative allometry（b＜l.00）,and that were significantly or highly significantly correlated with weight corresponded to positive allometry（b>l.00）. Conclusion The sex dimorphism of the adult Macaca mulatta in Taihang Mountains are related to the times of sexual maturation, growing rates, living manners and movement behaviors.

Key words: Macaca mulatta, Scapula, Humerus, Sex dimorphism, Bivariate correlations, Allometry analysis