This study aims to discuss the relationship of elementary and junior high school teachers’ perception on principals’ communication behavior, teachers’ job satisfaction and their organizational commitment. The results are provided as suggestions for improvement as well as references for educational authorities and principals with respect to school administration. This study used questionnaire survey as research method, and the subjects were public elementary and junior high school teachers in Kaohsiung. Based on the scales and categories of the schools, 768 teachers were selected through stratified random sampling method. The data were analyzed with t-test, One-way ANOVA, Pearson product-moment correlation, and stepwise multiple regression analysis. The conclusions are provided as follows: 1 The current status of teachers’ perception on principals’ communication behavior and teachers’ job satisfaction are at an upper medium level; the current status of teachers’ organizational commitment is at an excellent level. 2 Principals’ communication behavior, teachers’ job satisfaction and organizational commitment showed significant differences based on teachers’ background, principals’ background, and school environment.3 Teachers who are male, graduated from graduate institute, married, with longer seniority, serving as teacher and director concurrently, serving in a small-scale school, and the principal has less than four years of service on duty, shows better perception on principals’ communication behavior. 4 Teachers who are male, married, with longer seniority, serving as teacher and director concurrently, and the principal has over five years of service on duty, shows better job satisfaction and organizational commitment. However, teachers serving in a small-scale school show better job satisfaction, but teachers serving in a largescale school show better organizational commitment. 5 There are significant positive correlations among principals’ communication behavior, teachers’ job satisfaction and organizational commitment. 6 Principals’ communication behavior has a predictive effect on teachers’ job satisfaction and organizational commitment. For job satisfaction, “Development promotion” is the key variable of prediction.