Developing children's creativity is a central goal of preschool education programs worldwide. This study aimed to examine the effectiveness of the 5E model combined with the engineering design process (5E-EDP) within a STEAM education context in fostering creativity among preschool children. A quasi-experimental design was employed, involving two groups of children: an experimental group and a control group. The TCT-DP scale was used to assess children's creativity at both pre-test and post-test stages. The results indicate that the 5E-EDP model was more effective in enhancing creativity in 5-6-year-old children than the 5E model alone. The integration of the engineering design process within the 5E framework provided opportunities for children to generate and develop ideas, select materials, and create products in more innovative ways. Based on the findings, the study offers policy recommendations for implementing STEAM education to support educational innovation in the context of Vietnamese early childhood education.