The paper employs corpus technology and discourse analysis techniques to do a quantitative linguistic analysis of the keywords, semantic domains, and high-frequency collocations in the discourse of the chairman of the CCP’s cultural thoughts. According to the research, the chairman of the CCP’s cultural thought discourse is primarily focused on the domains of “people”, “China”, “culture”, and “socialism”, which together represent four key semantic features. These include a positive and resolute attitude towards cultural construction, a focus on upholding socialist political principles and stance, fostering socialist cultural self-confidence, and emphasizing the people-centered core idea. This paper offers reliable data support and a fresh research viewpoint to enhance further the comprehensive understanding and depth of comprehension of the chairman of the CCP’s cultural thought.