Art has a deeply rooted place in human life, it stimulates different emotions and helps to explore the inner being and the spiritual side of the individual. Expressive methods, especially art expressive methods, use visual arts, music, dance, drama, poetry and writing to help build a complete personality. These methods enable individuals to overcome obstacles in self-acceptance, express their problems through verbal and non-verbal techniques, and achieve a unique and effective way of expression. Art therapy, which applies art processes as a means of expression and communication, aims to include artistic creativity such as drawing, painting and modeling. Various expressive art methods, including music therapy, drama therapy, dance and movement therapy, etc., offer diverse ways of expression and communication and are used to help individuals better understand themselves and their emotions. The importance of the preschool age in the development of the child is especially emphasized, since the lack of creative expression in that period can affect the future development and emotional well-being of the individual. The main goal of this final thesis was to investigate the application of art expressive methods in a creative approach to preschool children and to analyze their positive effects. Through a comprehensive analysis, this final paper confirms that the application of art-expressive methods in the upbringing and education of children has a positive impact on their development. Art is an important component of human life, and its role in supporting the emotional, creative and social development of preschool children cannot be ignored. This thesis provides a basis for further research and application of these methods in order to better understand their positive effects on children's development, especially those with developmental disabilities.