The purposes of this study were to study the relationship between implementation of administrators and school effectiveness on the office of Chonburi elementary educational service area 2. The sample of  the study were 100 administrators. The tool data collection consisted of the questionnaires in 5 rating scales, which had the reliability of .92. The statistics of analysis of data were  Mean ( ), Standard Deviation (S.D.) and Pearsons Product Moment Correlation.
              The study results revealed were as follows :
                 1. The  study of relationship between  implementation of administrators on the office of Chonburi elementary educational service area 2 as a whole had at the high, but individual aspects of legitimate at the highest level. The rest of five aspects at the high were reference power, reward power, information power, expert power, Connection Power and coercieve power  at last.
                 2.  The study of school effectiveness on the office of  Chonburi elementary educational service area 2 was found in the high level which were positive, solving  problem, productivity and positive attitude, adaptability.           
                 3. The relationship between implementation of administrators and school effectiveness on the office of Chonburi elementary educational service area 2 was in positive level of the statistical significance difference .05 
