In contrast to the special emergency management of unexpected incident，the general emergency management seek for the goal of public security. Developing public security governance to extend special emergency management to general emergency management is not only the inherent needs of breaking through bottleneck of China’s emergency management，but also an inevitable choice to deal with the challenge of risk society. The theoretical base of special emergency management is the triangle model，which emphasizes on all hazards approach，all-phases management，and multiple agents participation. In contrast，the general emergency management is designed on the basis of the triangular pyramid model，which particularly stresses on to the extent public security can be achieved as consequence in addition to the three factors included in the triangle model. For this purpose，it is essential to take public security in priority in public policy and facilitate the synergetic development of risk governance，emergency management，and crisis governance to reach agreement in goal，method，and consequence to cope with the treats from emerging risk，catastrophe，and transboundary crisis. Case study shows that the triangular pyramid model is applicable in the context of China. In conclusion，developing public security governance to extend the special emergency management to the general emergency management is a holistic reform，and it needs a strategic planning.