Knowledge Payment is an internet-based economic model where users pay to access digital, professional knowledge products or services. At its core, it commodifies personal knowledge, experience, and skills, distributing and trading them through platforms such as online courses, paid columns, Q&A communities, audiobooks, and research reports. This model not only provides new monetization channels for content creators but also meets users' demand for efficient, structured, and high-quality knowledge acquisition, fostering a healthy ecosystem for knowledge sharing.