Deepening the understanding of the development model of China’s archives undertaking since the Reform and Opening-up is an inevitable requirement for accurately grasping and doing a good job of the archives work in the new era. In the past four decades,China’s archives undertaking has undergone several changes,such as a transition from the national model to social model,a transition from government-led to social synergy, a transition from passive behavior to positive reform,and gradually formed relatively stable development paths including the policy and administration-led model,education and research forced model,the practice and technology forced model,and the economy and social cultivation model. Above four development models have jointly promoted the sound and perfection of China’s archives system,consolidated the multi-dimension collaborative structure of China’s archives,enhanced china’s contributions to national governance,and enhanced its international status and influence.