Research shows that gamified learning experiences can effectively improve the outstanding issues of students in online learning, such as lack of continuous motivation and easy burnout, thereby improving the effectiveness of online learning. However, how to enhance the gamified learning experience in online learning, and what impact there is between the gamified learning experience and the effectiveness of online learning, remain to be further explored. This research article is based on the theory of gamified learning experience and uses structural equation modeling methodology to explore the relationship among the three dimensions of situation-based cognitive experience, collaboration-based social experience, and motivation-based subjectivity experience and the effectiveness of online learning. The results indicate that there is a significant positive correlation among the three dimensions, and all three dimensions have a significant positive impact on the online learning effectiveness. The subjective experience based on motivation has the greatest impact on the online learning effectiveness, and the other two dimensions have a significant positive impact on the online learning effectiveness. The impact on online learning effectiveness is similar. Finally, the article makes recommendations based on the research conclusions, expecting to provide a research foundation for enhancing the gamified learning experience and improving the effectiveness of online learning.