Abstract The purposes of this study are to investigate the relationship among teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors, teachers¡¦ organizational commitment, and teachers¡¦ job of involvement of elementary school teachers in Kaohsiung County. The major purposes are as follows¡G 1.To understand the situation of teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors, teachers¡¦ organizational commitment, and teachers¡¦ job involvement¡F 2.To understand their differences on different backgrounds of elementary school teachers¡F 3.To investigate the differences of teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors in teachers¡¦ organizational commitment and teachers¡¦ job involvement¡F 4.To understand the prediction effect of teachers¡¦ organizational commitment and teachers¡¦ job involvement from teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors. In order to achieve its purposes, this study has methodologically adopted document analysis, questionnaire survey. The subjects are public elementary school teachers in Kaohsiung County. The tool of this study, ¡§Elmentary School Principals¡¦ Tansformational Leadership Behaviors and Teachers¡¦ Organizational Commitment and Teachers¡¦ Job Involvement Survey Questionnaire¡¨ was designed and then 613 samples were surveyed. The data were analyzed and presented by t-test, one-way ANOVA, Pearson¡¦ s product-moment correlation, and stepwise multiple regressions. The conclusions of this study are as follows¡G 1.The teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors have high positive response in elementary schools. 2.The dimension of identification with school has high good response in teachers¡¦ organizational commitment. 3.The dimension of concentration on work has high good response in teachers¡¦ job involvement. 4.First, different personal variables have differences in teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors. Next,different personal variables have differences in teachers¡¦ organizational commitment. Finally, different personal variables have differences in teachers¡¦ job involvement. 5.First, teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors have great positive correlation with teachers¡¦ organizational commitment. Next, teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors have great positive correlation with teachers¡¦ job involvement.Last, teachers¡¦ organizational commitment have great positive correlation with teachers¡¦ job involvement. 6.Different teachers¡¦ organizational commitment and teachers¡¦ job involvement have differences in different teachers¡¦ perceptions ofprincipals¡¦ transformational leadership behaviors. And the high level ofteachers¡¦ perceptions of principals¡¦ transformational leadership behaviors is higher in teachers¡¦ organizational commitment and teachers¡¦ job involvement than the middle level and the low level. 7.Teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors are powerful in predicting teachers¡¦ organizational commitment in elementary schools. 8.Teachers¡¦ perceptions of principals¡¦ transformational leadership behaviors are powerful in predicting teachers¡¦ job involvement in elementary schools.