The model of online presence in online learning space is constructed and applied in the course which is database technology and application. Collection and processing of questionnaire data and learning behavior data generated in online courses. Using data analysis to reveal the relationship between online presence experience and learning effectiveness| How the specific behaviors of different dimensions of online presence affect the effectiveness of online learning| What other factors have an impact on online presence experience and learning effectiveness. The results of comprehensive data analysis provide inspiration for improving the learning effectiveness of online learning space courses.