Parents' behaviors-particularly their emotion socialization behaviors (ESBs)-drive children's emotion socialization (Eisenberg, Cumberland, & Spinrad, 1998). We propose that a major next step in the effort to promote healthy emotional development is to improve the field's understanding of the most proximal contributor to parent ESBs: parents' own experience and regulation of emotions in the context of caregiving. As an initial step, this paper integrates Eisenberg and colleagues' model of emotion socialization with theoretical and empirical work on parental emotion. We review the literature on the emotionally evocative nature of parenting, which influences parental ESBs, including parents' expressions of emotions and their responses to children's emotions. However, whereas parental emotions influence behavior, they do not necessarily determine it; parents may regulate their emotions to engage in optimal ESBs. Thus, parental regulation contributes to emotion socialization not only by modeling emotion regulation strategies for children, but also by influencing the quality of parents' ESBs. From a clinical perspective, parental emotion regulation is of utmost importance due to the degree of parental involvement in interventions for childhood emotional and behavioral disorders, which are often aimed at promoting child self-regulation. To illustrate practical applications of Eisenberg's model, we discuss evidence-based practices that include enhancement of parent emotion regulation as a primary target, with the ultimate goal of promoting child emotional development. Ultimately, we aim to spur future theoretical, empirical, and translational work in this area.