Abstract: Socialist theory with Chinese characteristics comes from the practice in the primary stage of socialism, which cannot succeed without the guidance of the socialist theory with Chinese characteristics. Emancipating the mind has played an intermediary role in the organic realization of theory and practice, strengthening the coincidence between the socialist theory with Chinese characteristics and the practice of socialism with Chinese characteristics, enhancing the credibility of the socialist theory with Chinese characteristics, ensuring the systematicness, coordination and coherence among the theoretical achievements of socialism with Chinese characteristics, promoting the expected function of the socialist theory with Chinese characteristics. In a word, the process of emancipating the mind is the process of continuously enhancing the self-confidence of the socialist theory with Chinese characteristics.