With the development of the Internet, modern educational technology is also making continuous progress based on the Internet. Internet technology provides us with abundant online learning resources and creates a brand new teaching mode. Changes in the field of education bring new opportunities and challenges, which affect students' mental and physical health. This study focuses on the psychological problems of students under the background of network teaching. Through data analysis, it can be concluded that emotions not only affect students' interest in learning but also affect their learning process. The results show that emotion plays an important role in students' learning, and different sources of learning emotion and emotional experience have different effects on students' academic performance. Teachers must scientifically use modern educational technology to establish a good learning environment and, at the same time, help students to have a healthy psychology. Only having a healthy body and mind can improve one's comprehensive ability.