This research aims to identify the relationship of the institutional culture efficient and effective administrative reform process in the public sector institutions. Where it was introduced the concept of institutional culture and the concept of administrative reform of the efficiency and effectiveness angle, and then we dealt with the reflection of these concepts on the ground in a number of the Syrian public institutions.The main results of this research is the existence of a relationship between corporate culture and the effectiveness and efficiency of the administrative reform. Also shows a difference between the averages of the opinions of the respondents about the institutional culture in their impact on the effectiveness of the administrative reform, while there are no significant differences between the averages of the opinions of individual differences sample about institutional culture in their impact on the efficiency of the administrative reform.