The purpose of this research was to analyze the commercialization barriers of agricultural knowledge at IAU, Ilam Branch in 2013. The methodology of this research was applied in objective, a field study as far as the monitoring and control of variables is concerned, also in method of data gathering is descriptive. The statistical population included 90 postgraduate students studying agricultural extension and farm management. Since the statistical population were limited a small number of students, census method was used. The reliability of questionnaire was computed through Cronbach's alpha (&alpha=0.93), which was statistically acceptable. The Face validity of the questionnaire was affirmed by consulting the viewpoint of the faculty member's agricultural extension and management department. The findings ranking of commercialization barriers of agricultural knowledge at IAU, Ilam branch indicated that the cultural barriers are the   first priority. Also, the factor analysis of the commercialization barriers of agricultural knowledge showed that five main factors including economic, social, educational political-logistical and legal accounted for 76.76 percent of the total variance. The most important factor among these five factors was the economic one, which accounted for about 46.32 percent of the total variance.