Child's crying is the stimuli serving the development of a child-parent relationship through evoking child-oriented and parent-oriented parental reactions. Individual differences in parental reactions to crying have been partly explained by parental and child's temperament. We conducted two studies to verify the predicting effects of temperamental emotionality of parents and children on mothers' (Study 1 and 2) and fathers' (Study 2) self-reported emotional reactions to own child crying. In the Study 1 (N = 108), maternal ratings of the child's global level of emotional reactivity and regulation partially mediated the relationship between mother's emotional reactivity and parent-oriented reactions to the child crying. This result was confirmed in the Study 2 (N = 270) with maternal general negative affect and child's negative emotionality as predictors. Additionally, in the Study 2, child's temperamental negative emotionality fully mediated the relationship between the father's negative affect and parent-oriented emotional reactions to the child's crying.