The article discusses how the Communist Party of China has evolved its understanding of socialism over time. Initially influenced by the Soviet Union, the Party has developed its own theory of the essence of socialism, reaching a new scientific level under Deng Xiao-ping. Subsequent leaders have continued to refine this theory based on new experiences, ensuring the Party's theoretical innovation remains relevant. The main goal is to deepen the understanding of socialism in the context of China's unique circumstances and ongoing development.