Emotional intelligence plays a great role in human adaptation to social environments. The individual level of emotional skills depends on one's genes, family environment, and socialisation, as well as personal experience and education. The purpose of the present study was to examine the educational influence of mental simulation in developing the emotional skills of preschool children. A total of 30 children between the ages of three and five took part in our experiment. The dependent variables were recognising, understanding, and controlling emotions measured by a tool created especially for this study. Our experiment included repeated measurement conducted before and after mental training. The content of the mental simulation contained clues about how to recognise and understand emotions. Our results confirmed the expectations that mental simulations enhance children's ability to recognise, understand, and control emotions.