This paper focuses on intelligent technology, especially the automatic content distribution driven by artificial intelligence (AI), which empowers the construction and optimization of the private traffic matrix in the career-planning knowledge payment industry. In the digital era, private traffic management has become a core strategy for knowledge payment platforms to enhance user engagement and conversion rates. AI builds a comprehensive private traffic system through precise personalized recommendations, user profiling analysis, and automated content production, thereby improving operational efficiency and profitability of platforms. Through empirical data analysis, this study reveals the specific applications of AI in content marketing and explores future development trends as well as potential technological challenges.