According to Social Constructivism owing to mutual interactions among different actors could create shared ideas and form different identities, which could guide actor’s interest and policy. This dissertation applies this research theory and approach to highlight how China’s mass armed forces constructs its identity, interest and its policy. Secondly, the author based on China’s different generation leaders’ assessment regarding mass armed forces route and evaluate systematically all publications related to China’s militia studies and come to the final observation: The performance of China’s mass armed forces relies on the China’s militia. Because of the identity of China’s militia leads to accomplish the interest of regime construction and maintain regime stability, which proves China’s militia played an important role regarding maintain regime stability during history of Chinese Communist Party’s development. Last but not the least, Xi Jing-Ping, the fifth generation leader of CCP, conferring to former Chinese leaders’ ideas and values of mass armed forces has evaluated China’s national objectives interests and articulated China’s subjective national interests and subsequent national security strategy and policy, which has great implications upon contemporary development of China’s militia.