Abstract: This study aimed to analyze the model of teachers organizational commitment to enhance the quality of vocational high school graduates in North Tapanuli covering organizational culture, achievement motivation and job satisfaction of teachers. The method used was survey method with descriptive and inferential statistics. Sample were 110 teachers of vocational high school in North Tapanuli. The data collection technique used were study of documentation, research instruments and interviews. To test the hypothesis of the study conducted by the path analysis (path analysis) while to test the suitability of theoretical models used goodness of fit test using Chi-square. The results showed that there were direct positive influence organizational culture on achievement motivation, organizational culture on job satisfaction, organizational culture on organizational commitment, achievement motivation, organizational commitment and job satisfaction on organizational commitment tearchers of vocational high school in North Tapanuli. These findings suggested that the model of teachers organizational commitment were organizational culture, achievement motivation and job satisfaction, needs to be increased so that the quality of vocational high school graduates in North Tapanuli increasing.