Abstract: The development process of cybersecurity protection architecture for the smart grid dispatching and control system in China is analyzed and summarized in three stages,namely,in-depth safeguard based on perimeter security,business security based on classified protection and active safeguard based on trusted computation.Then,with the current rapidly changing threats and the new situation of national cyberspace confrontation taken into account,a new generation of grid dispatching control system security active safeguarding architecture based on trusted computing technology is proposed.The purpose is to achieve a trusted computing environment,trusted application behavior and trusted network communication.The architecture proposed is characterized by security and immunity,and has security and controllability as its objective.The core safeguarding technologies are described.