**Abstract**

The chapter presents the impact of COVID-19 on Thai higher education the national, and university reactions and policies to cope with the situation. Parallel with the technology disruption, most universities have been attempting to promote online teaching due to the new learning environments and learning style of students, while faculty members are still reluctant. However, the COVID-19 has inevitably changed the ways the faculty members handle their classes. In this chapter, the findings on the components of online teaching and learning ecology (OTLE) in Thai higher education during the COVID-19 is summarized and proposed, covering the following topics: learning and teaching method, technology and learning resources, teacher roles, and student roles and responsibilities. Finally, the key success factors for the development of learning ecology at the higher education level are also covered.

**Keywords:** online teaching, online learning, learning ecology, higher education, COVID-19, Thailand
