The work aims to understand the influencing factors of users' willingness to use knowledge acquisition platforms, and provide reference for platform design and services in the context of the rapid development of the mobile Internet. Through user research, factor analysis and linear regression analysis, 450 questionnaires were distributed to determine the specific factors affecting users' use of the knowledge acquisition platform, and to analyze the influence relationship between the above factors and users' willingness to use, as well as the degree of internal correlation between factors. Factor analysis showed that the main factors affecting users' use of knowledge acquisition platforms were social interaction, functional quality, usefulness, and comfort, among which social interaction was the most important factor affecting users' willingness to use, followed by functional quality, comfort, and usefulness. Multiple linear regression analysis showed that social interaction and functional quality were the direct factors affecting appeasement and social interaction had an impact on functional quality, usefulness was affected by functional quality while promoting social interaction. In conclusion, the development and design of knowledge acquisition platforms should focus on enhancing the communication and interaction between users, provide complete product functions, gather high-quality resources and provide targeted content to alleviate users' knowledge anxiety, and ultimately increase users' willingness to use the platform.