Educational psychology has the function of describing, explaining, predicting and controlling educational practice. In practical application, these functions are often intertwined, including the following four aspects: helping teachers understand the problem accurately; Provide scientific theoretical guidance for practical teaching; Help teachers predict and interfere with students; Help teachers conduct research in combination with teaching practice.

It can be used to design courses, improve teaching methods, promote learning motivation and help students face all kinds of difficulties and challenges in the process of growth.

Educational psychology pays attention to students' learning and development, especially to students with special educational needs (whether gifted children or children with emotional and behavioral problems) in practice. Through the relationship with other disciplines, it is also helpful to understand educational psychology.