We cross-sectionally examined the development of the ability to recognize facial expressions of emotions in preschool-aged children and the relationship between this ability and other neurocognitive capacities, that is, attention/executive functions, language, memory/learning, sensorimotor functions, theory of mind, and visuospatial processing. Children aged 3 to 6 years with no significant developmental deficits (N = 370) were assessed with a nonverbal matching task of emotion recognition ability: The Affect Recognition subtest from the NEPSY-II. The relationship between emotion recognition ability and other neurocognitive capacities was analyzed using correlation, regression, and commonality analyses. The results showed that (a) emotion recognition ability improved with age-this development decelerating mildly between ages 5 and 6-(b) emotion recognition ability correlated with all other neurocognitive capacities, and (c) language, attention/executive functions, and theory of mind were significant predictors of emotion recognition ability in the regression analysis. As revealed by the commonality analysis, and in contrast to most previous studies, language was the most important predictor of nonverbal emotion recognition ability. These results suggest that nonverbal emotion matching is an early maturing skill that develops in relation to other neurocognitive capacities, especially linguistic ability.