The study aimed at understanding the actual reality of Administrative Efficiency for the principals of the post Basic Education Schools in Batinah South Region in Oman . In addition to that , clarifying the effect of the elements of quality , years of experience and the occupational level in this study. In order to accomplish these aims , the study implemented a Questionnaire as his major tool for conducting the field study. After checking its authenticity and stability, the questionnaire was used and implemented on the study sample that consisted of 88 school principals and their assistants. The study concluded that the degree of the administrative efficiency for the Post Basic Education School principals was at a high level with the average statistically measured responses at (3,89). The results of the study also showed that there is no difference in the statistical indications between the different variables taken at the level of the function (a = 0,05) according to the factors of quality, occupational level or the years of experience in all fields. The study came up with the following recommendations , most importantly : The necessity to adjust the organizational legislative list in the field of training school principals , conducting essential workshops for school administration , designing electronic websites that concern schools' administrative communications on the internet to exchange expertise. In addition to the necessity to provide the financial support for school administrations to develop the strategic planning process in all its sides and in all schools . Also encouraging school workers to communicate and actively participate in helping to lead the school strategic planning to success.