At present, the integration and application of artificial intelligence, big data and other digital technologies in education has led to the emergence of a large number of digital teaching tools used to support, optimize, or innovate education and teaching activities, providing important support for the transformation and change of education and teaching. In recent years, educational institutions at all levels around the world have actively explored the practical application of digital teaching tools, forming diverse application models. These practices are mainly focused on four levels: teaching, evaluation, teaching and research, and management. This paper will systematically sort out and summarize the above practices, focusing on the analysis of their application design, implementation methods, and actual effectiveness, with the aim of providing useful reference for the efficient application of digital teaching tools.