The main objective of this research is to identify the dimensions and components of cultural development for the National Library of Iran. This research is a purposeful applied study with quantitative and qualitative data compilation using a survey for collecting data. The statistical population of the study is all middle and senior managers of the National Library of Iran. Five people were interviewed and 32 were selected purposefully to answer the questionnaire. The main dimensions and components of cultural development is based on library studies and theoretical foundations (theories, methods and models), interviewing and studying the research background in 3 dimensions and 23 components presented to the respondents for confirmation. The results of the confirmatory factor analysis of the dimensions and components of the cultural development model of the National Library of Iran shows that among 23 identified components, 2 components with factor load less than 0.4 were removed from the template and 21 other components were approved. Also, the components could identify and introduce common cultural thoughts with other countries. The components of "strengthening organizations of the public institutions" and "dialogue between civilizations" are the most important among others.