This paper takes the application of different teaching models in primary school art colour education as its topic and aims to stimulate students' interest in learning about colours through the use of digital technologies such as computers, enhance their sensitivity to colour aesthetics and creativity; Through diversified forms such as computer-assisted painting exercises, appreciation courses based on information Technology and creative practice projects linked with multimedia presentations. Considering the cognitive development of children, this study has put forward three new ideas: digital tool-enhanced skill training, scenario-based immersive learning and resource integration. Take some representative cases at different grades as examples and show their implementation of this practice. Through the Design of graded tasks, construction of specific learning scenarios, and combination of online and offline resources with local culture, digital technology is fully integrated into colour instruction. At the same time, it is pointed out that the transformation of digital teaching requires continuous exploration of the adaptation path between technology and teaching, in order to promote the quality and efficiency of primary school art color teaching and lay a solid foundation for the development of students' artistic literacy.