In Ethiopia, secondary school Civics and Ethical Education has been offered to students with prime objective of producing competent and rational citizens. While policy narratives advocate constructivist pedagogy for achieving this goal of the curriculum, the reality on the ground hints that the subject is far behind achieving its stated goal. In line with this, teachers' role in implementing the curriculum cannot be understated. Teachers are policy actors who implement the official curriculum. Their classroom practice; however, is largely dependent on their pedagogical beliefs. To this end, this study aimed at examining the role of secondary school Civics and Ethical Education teachers' pedagogical beliefs in their perceived classroom practices vis-à-vis selected demographic variables. The study was conducted using correlational design participating 324 Civics and Ethical Education teachers from 43 government and private secondary schools in Addis Ababa city. Two-way multivariate analysis of variance and multiple regression were used to analyze the data. The regression analysis revealed that teachers' pedagogical beliefs explained 45.8% of the variance in classroom practice. Teachers were also found to have strong constructivist belief, even though they do not completely reject traditional belief per se. Their constructivist practice is; however, below the expected level, suggesting the interplay of contextual factor(s) which should be further studied. The findings implied the need to redefine continuous professional programs with emphasis on reflective teaching practice and improve climate of secondary schools.