Our country and other advanced countries are reforning in education at the present. So, The principal's role and practice are becoming more complicated than the past. It is a imperative issue that how to help effectively principals in building professional leaders' image. The purpose of the study was to explore the changes and recognition of principal's role in school at the present Educational-Reform. Offer some references and suggestions to principals, educational administration officer, and principal preparation bureau. First, analyze principal's position and responsibility in the laws. Second, explore the influential factors that changing their role. Finally, the recognition of new principal's role to be concluded into below: 1. The vision-building experts. 2. Administration professional leader. 3. Instructional leader. 4. Learning- organization leader. 5. Artist. 6. Collaborative partner. 7. Enlightened reformer. 8. Learning- community builder.