With the rapid development of information technology, especially from the Internet to the mobile Internet, the internetization of education has created a way of life, work and study that spans time and space, and fundamentally changed the way of knowledge acquisition. Teaching and learning are not limited by time, space and place, and the channels of knowledge acquisition are flexible and diverse.

In the era of intelligent education, with the deepening of users' demand for knowledge and the awakening of consumption consciousness, knowledge payment platforms with "light knowledge" as products have appeared one after another. According to the Analysis Report of China Online Education Industry Market Prospect and Investment Strategic Planning in 20 18-2023 by Prospective Industry Research Institute, by the end of 20 16, the number of online education users in China had reached1380,000, an increase of 27.5 million compared with the end of 20 15, with an annual growth rate of 24.97. Among them, the number of mobile online education users was 97.98 million, an increase of 44.95 million compared with the end of 20 15, with an increase rate of 84.80%.