Purpose : The impact of content knowledge idea instruction on teaching quality of Farhangian University faculty members of Region 9 of Iran. Method : This applied study was conducted with a mixed approach using a qualitative and quantitative approach. In the qualitative section, the statistical population included 20 professors of Farhangian University in Region 9, 10 of who were selected by purposive sampling method based on saturation law, and 263 faculty members, professors and visiting lecturers of Farhangian University in Region 9 of the country. Including (Semnan, Mazandaran and Golestan) were in the quantitative section that 156 of them were selected as a sample using random sampling method classified according to Cochran's formula. To collect data, two content knowledge education questionnaires (researcher-made) with 82 questions and the development of faculty members of Qoroneh et al. With 93 questions were used. The validity and validity of the instruments were confirmed by the supervisors and consultants and the combined reliability and Cronbach's alpha were calculated higher than 0.7. SPSS21 and PLS3.2 software and structural equations were used for data analysis. Findings : The results of structural equation test showed that the effect of content knowledge of education and training on the development of faculty members in Farhangian University, Region 9 was positive and significant. Conclusion : The results showed that the effect of content knowledge of education on the development of faculty members in Farhangian University in 9 countries has been significant.