Science of Security 2022 - With the proposal of the major strategy of "network power" and the establishment of the first level discipline of "Cyberspace security", the training of Cyberspace security talents in China has entered a period of strategic development. Firstly, this paper defines the concept of postgraduate education quality, and analyzes the characteristics of postgraduate education and its quality guarantee of Cyberspace security specialty, especially expounds the difference with information security major. Then, on the basis of introducing the concept of comprehensive quality, this paper expounds the feasibility and necessity of establishing the quality guarantee system of Cyberspace security postgraduate education based on comprehensive view under the background of new engineering. Finally, the idea of total quality management is applied to the training process of postgraduate in Cyberspace security. Starting from the four aspects of establishing a standard system, optimizing the responsibility team, innovating the evaluation mechanism and creating a cultural environment, the framework of quality guarantee system for the training of postgraduate in Cyberspace security based on a comprehensive view is constructed.