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The present study aimed to explain the role of human resources excellence strategies on staff organizational commitment in saipa Aotomotive Manufacturing Company. The research method was descriptive- correlation of SEM. Based on Cochran sampling formula and by using multiple- stage cluster sampling method, 155 employees were selected as the reaserch sample. For data collection, the reaserchers used human resource excellence stralegies questionnaire with the reliability of α=0.94 and Allen and Meyer’s organizational commitment questionnaire (1991) with reliability of α=0.81. The data were analyzed through Kolmogorov- Smirnov test, one- sample t-test, Pearson correlation, Stepwise regression, SEM, analysis of variance, and post hoc tests. The results showed that human resource excellence strategies were significantly lower than average and employees’ organizational commitment was significantly higher than average. The structural equation modeling indicated that the research model is relatively well fitted with the data; thus, human resources excellence strategies with path coefficient of γ=0.58 have an impact on organizational commitment, but human resource leadership does not affect organizational commitment. Finally, one-way variance analysis and Dunnett t3 post hoc test showed that the state of human resource excellenence strategies was not different in different parts of the company, but there was a difference between the organizational commitment of the personnel of health and safety management department and human resoueces management department.