This study utilized a Structural Equation Modeling approach to model and measure the influence of environmental attitudes and preschool teachers' beliefs regarding environmental education. Data was collected from 324 preschool teachers in Hanoi, Danang, and Ho Chi Minh City through an online questionnaire. SmartPLS software was used for data analysis. The results indicated that the environmental attitudes of preschool teachers have a significant, positive, and strong influence on their beliefs regarding environmental education, with path coefficients valued at 0.734 (p < 0.05), the model's explanatory power of 0.539, and the effect size of 1.170. In addition, this study provided reliability and validity scales for environmental attitudes and preschool teachers' beliefs regarding environmental education. These findings imply that it is necessary to cultivate and enhance a positive attitude toward the environment among preschool teachers through initial preschool teacher training and professional development for in-service preschool teachers. This will help solidify their beliefs about environmental education.