The development of learning technology today, have a direct impact on improving teachers' information technology competence. This paper is presented the results of research related to teachers' information technology competence. The study was conducted with a survey of some 245 vocational high school teachers. There are two types of instrument used in taking the data, namely questionnaires and observation sheets. Questionnaire was used to obtain data on teacher interpersonal communication, use of information technology tools, teachers' perceptions toward information technology, and self-improvement of teachers. Observation sheet used to obtain data on teacher competence in the field of information technology Data was analyzed using path analysis through SPSS 12 and LISREL 8:30. The analysis showed teachers' competence in the field of information technology is influenced by the teacher interpersonal communication, use of information technology tools, teachers' perceptions toward information technology and self-improvement of teachers either directly or indirectly.