The review of the literature indicates EFL teachers’ sense of efficacy has been influenced by cognitive and affective factors. Socio-economic factors may also influence EFL teachers’ sense of efficacy directly and their teaching effectiveness indirectly. One of the socioeconomic variables is the quality of work life (QWL). This study was an attempt to investigate the relationship between EFL teachers’ quality of work life and their teaching efficacy. Ninety High school English teachers from Sistan and Baluchestan were selected. The data of the study were collected through two adapted instruments and analyzed through Pearson correlation and linear regression analysis. The results of the study showed that Iranian EFL teachers perceived themselves as having a good level of teaching efficacy. The results also showed that there was a significant correlation between all dimensions of QWL and teachers’ teaching efficacy except for “adequate and fair compensation” is significant at a P value of 0.05, but only one dimension of QWL could predict teachers’ teaching efficacy. Therefore, it could be strongly argued that teachers’ QWL is not the only influential factor in teaching efficacy.
