In order to improve and promote students' environmental knowledge, attitudes, and behaviour, integrating environmental education into the primary education curriculum has become a key issue for environmental education. For this reason, this study aimed to investigate elementary school students' acceptance of technology applying digital game-based learning (DGBL) to environmental education. A total of 32 fourth graders in an elementary school participated in a seven-week DGBL teaching experiment. After the experimental teaching session, a survey concerning "perceived ease of use", "perceived usefulness", and "user intentions" was conducted. The results show that the DGBL system is suitable for both genders at all levels of experience. In addition, the 4th grade students' "perceived ease of use", "perceived usefulness", "attitudes toward use", and "intention to use" reveal a high degree of positive and significant correlations. Furthermore, a path analysis verifies that DGBL acceptance will be directly influenced by a learner's "attitude toward use" and "perceived usefulness." Finally, when designing DGBL for 4th graders, the rich learning content and ease of use should be taken into account because they significantly contribute to a learner's intention to use the system, which may result in greater learning effectiveness. (Contains 8 tables and 6 figures.)