In order to promote the better development of children’s music appreciation and aesthetic
ability, this study starts from the current situation of kindergarten music appreciation ability, with
children aged 3 to 7 as the research object, through the experimental method, music mood type, music
type and mood valence as independent variables, to explore the development characteristics of children’s
music mood understanding. The results show that the overall level of musical emotional understanding
of children aged 1.3 to 7 years increases with age but decreases slightly; vocal work recognition and
positive emotional understanding from 2.3 to 6, high emotional understanding, music type, emotional
valence and emotional awareness are better than boys. Future research can diversify the selection of music
emotion type and sample size.