The International Centre for Higher Education Innovation under the auspices of UNESCO (UNESCO-ICHEI), closely aligns its mission with the United Nations Sustainable Development Goal 4, which focuses on the digital transformation of higher education in developing countries, and further expand opportunities for lifelong learning and quality and equitable education through building the capacity of university teachers for the digital future. In 2019, with the support of the Tencent Charity Foundation, ICHEI joined hands with 11 partner universities, 8 international education technology enterprises, and 4 Chinese universities to form the International Institute for Online Education (IIOE), a collaborative network of higher education stakeholders. On the premise of co-construction and sharing, IIOE made progress in curating professional development resources, empowering infrastructure upgrades in partner institutions, promoting the quality assurance frameworks, and improvement of digital teaching in higher education. Through a series of measures such as joint research, regional studies, and pilot projects, and relying on the IIOE national center mechanism, localisation practice and implementation of the digital teaching improvement plan, ICHEI and partner networks have formulated a series of shareable practical results around the digital transformation of higher education.