The purposes of this study were to investigate and to compare transformational leadership of school administrators under the Office of Chachoengsao Educational Service Area  1 with four different aspects: idealized influence, inspirational motivation, intellectual stimulation and individualized consideration. The samples of this study were 499 participants of school administrators and teachers classified by positions, gender, and work experience.  The instrument was a five-rating-scale questionnaire and statistical analysis included frequency, percentage, means, standard deviation, and t-test.
The findings were as follows:
1.  The overall transformational leadership of the school administrators was at a high level ranged from individualized consideration, idealized influence, inspirational motivation and intellectual stimulation respectively.
2.  There was no significant difference in the overall transformational leadership of the school administrators when  classified by positions.  However, the significant difference was found at .05 level in the aspects of inspirational motivation and individualized consideration.
3.  There was no significant difference in the overall transformational leadership of the school administrators when  classified by gender.  However, the significant difference was found at .05 level in the aspect of idealized influence.
 	4.  There was no significant difference in school administrators? transformational leadership 
when  classified by work experience.
