The study aims to find out the influence of internal quality process on the growth of quality culture in private college. This study is treated toward 178 lecturers of 25 private colleges in Sulawesi, Indonesia by means of questionnaire. Confirmatory factor analysis applied to assess the reliability of validity and measurement model. Relationship between latent variable is checked by Structural Equation Modeling (SEM). This finding reveals the importance of facilitating personal involvement in organization and certainty toward implementation of job description in purpose to maximize the use of personal competence, wisdom, skill, and creativity. Simultaneous, multi-stage and systematic internal audit process will become forging experience for staffs, so it will form habits, beliefs, behavior, and attitude. The formation will bring changes of quality culture in private college. Sample is only taken from private college in Sulawesi, Indonesia and it does not involve state college. The finding may not be generalized for the other colleges. Hence, the further study is suggested to complete the gap. Considering the rise of quality assurance standard demand for college, then identification on factors which can grow up implementation consistency of quality management system is an urgent. Therefore, it is recommended that top management of college pay more attention to the process of internal quality audit systematically and continually. This paper explains factors affecting the growth of quality culture as the basis for implementation consistency of ISO 9000 quality management system in private college.