Background/purpose: This study aims to assess the international competitiveness of Thai Higher Education and the satisfaction levels of Chinese international students, taking into account the previously overlooked experiences of this group. These criteria are crucial for Thailand's objective of positioning itself as a leading educational center in Southeast Asia. Materials/methods: The research methodology employed a mixed-methods approach, combining qualitative and quantitative research methodologies. The qualitative component consisted of conducting in-depth interviews with 25 participants, while the quantitative component comprised administering a complete survey to 718 students. The poll specifically targeted four primary domains: entrance protocols, curriculum structure, tuition and living expenses, and student support services. Results: The research findings demonstrated a direct and favorable relationship between student happiness and the international competitiveness of Thailand's Higher Education Institutes (HEIs). Student satisfaction is influenced by various aspects such as the quality of instruction, the rapport between teachers and students, extracurricular activities, campus facilities, tuition fees, curriculum design, the overall environment of the institution, and the availability of academic resources. Conclusion: This study emphasizes the significance of strategic initiatives implemented at the institutional level, such as offering customized student services to meet specific requirements and implementing substantial changes to the curriculum. These activities are recognized as significant factors that contribute to the international competitiveness of Thailand's higher education institutions.