This study aims at analysing whether the antecedent variable directly affects the performance of the high school teachers or not. In addition, this research strives to find out whether the antecedent variable indirectly affects the teachers' performance through the achievement motivation of the high school teachers. It was a quantitative research with 130 respondents using Structural Equation Model Analysis AMOS 18. The study found that the antecedent variable in the form of emotional intelligence and competence had a positive and significant effect directly on teacher performance. In addition, the variables of antecedent, emotional intelligence, and teachers' competence indirectly have a positive and significant effect on the teachers' performance through achievement motivation. It illustrates that emotional intelligence of every teacher provides convenience in teaching students at the senior high school. The teachers' competence becomes important in supporting the teaching profession and providing convenience for teachers in the teaching and learning process effectively to improve the performance of teachers through achievement motivation.