The present article examines the available literature on the association between emotion, conscious reasoning, morality, and punishment. Although conscious reasoning has traditionally been implicated in moral judgment, contemporary research suggests that emotions play a primary role in moral judgment. This article reviews the different lines of evidence supporting the role of emotion in moral decision-making. Disgust seems to be unique from other emotions in its ability to influence moral judgment. Immorality often elicits disgust, individuals sensitive to experiencing disgust tend to make more severe moral judgments, and experimental disgust inductions can influence judgments about moral violations. However, the extent to which the emotion-moral judgment association extends to decisions about punishment remains unclear. This review considers various concepts, including moral outrage, responsibility, and blameworthiness that may influence the extent to which emotion informs punishment decisions. The implications of these findings for current thinking on morality and punishment, and future directions for research are discussed.