This study aims to examine the effect of feedback strategies on understanding and applying the concept of National ideology to students who have different achievement motivation, on learning Citizenship Education in vocational high schools. This research uses quasi experiment research design (Quasi Experiment). The subjects of this study were 133 vocational high school students. The research instrument used the achievement motivation questionnaires and test appraisal tools of understanding and application of the concept. Research data were analyzed using MANOVA (Multivariate Analysis of Variance) method with 2x2 factorial. The results reveal three findings, namely: (1) there are differences in posttest score of understanding and application of concepts between groups of direct and indirect feedback strategies; (2) there is difference of posttest score of understanding and application of concept between high and low achievement motivation group: (3) interaction between feedback strategy with achievement motivation does not influence simultaneously to understanding and application of concept.