With the development of internet information technology, online teaching has become an important education means at present. It is essential to focus on learners’ physical and mental development laws in online education. The emotions generated in online learning influence the learning effects. In order to explore the influencing emotion factors and the corresponding learning effects in online design and creation courses, the study takes online learners as the research object and adopts the qualitative research method. At the beginning, the interview materials are obtained according to the direction of preliminary questions, and then the interview materials are encoded in the first level and the second level. The study finds four influencing factors of online learning, including learning environment, individual characteristics, curriculum tasks, and teaching methods. The study also explores the relationship between learning emotion and learning effect. Then a model is constructed, which elucidates the learners’ emotional influencing factors, production process and results in design and creation courses, and has certain enlightenment and reference function for optimizing online teaching strategies.