Abstract: There was a lack of organizational connection between the traditional Chinese society and the nation, and this structural defect prevented it from gestating modernization. The Chinese Communist Party’s regime in the countryside has established the connection, which fundamentally transformed the traditional Chinese society and the state structure, and promoted China on the path of modernization. The 100-year history of the Chinese Communist Party is essentially a history of taking the mass line. In the new era, Chinese Communists still adhere to this party’s lifeline and the fundamental work principle, creating countless miracles of China’s modernization.