SUMMARY
The artilce was a correlational study which aims to determine the effect of the contribution of interpersonal communication and perceptions of the principal's leadership style on the teacher's commitment to carry out tasks. The population and research sample were public high school teachers in the city of Palembang. There were 22 public high schools in Palembang City with a total of 1,269 people. Data collection techniques were carried out in four ways, namely through observation, distributing questionnaires, and documentation, and interviews. Further data analysis was performed using the SPSS Ver computer program. The results can be concluded that the interpersonal communication variable (X1) has a significant effect on teacher commitment in carrying out the task (Y), the perception variable about the principal's leadership style (X2) has a significant effect on the teacher's commitment in carrying out the task (Y), and the interpersonal communication variable (X1) and the perception of the principal's leadership style (X2) simultaneously has a significant effect on teacher commitment in carrying out assignments (Y).Keywords: Teacher Commitment, Interpersonal Communication, Principal Leadership Style