The purpose of this study is to investigate the theological and exegetical debates concerning Adam-Christ typology and to specifically explain the structure of the Adam-Christ typology in Romans 5:12-19. The Adam-Christ typology in Romans 5:12-19 is called structural typology because the meaning of the context is revealed through the structural analysis. To understand the connection between Adam as a type of Christ and Christ himself, it is essential to know the structure of the text and to define the meaning of the text through exegesis. This thesis examines some disputes regarding the structural and grammatical issues of Romans 5:12-19. Three types of the comparative conjunctions used in Romans 5:12-19 show that the correspondence between Adam and Christ appears based on similarity. Comparing Christ and Adam stresses the greater redemptive grace of Christ and His gift.