Abstract:Now, China has entered the era of big data, while big data technology as a data advanced technology has been widely used in many industries and achieved satisfactory results, China's international petroleum cooperation has become increasingly frequent, The emergency management system has always been criticized, This paper takes the problem as an opportunity, Based on the analysis of the characteristics of China’s International petroleum cooperative emergencies and disadvantage of the emergency management, combining the characteristics of big data technology and its application process, It puts forward the construction of the emergency decision-making command system of China's international petroleum cooperation, which is efficient, rapid and resource optimization. besides, it puts forward five levels of big data Emergency Decision-making Command System: information resource layer, data conversion layer, resource storage layer, decision analysis layer and information application layer. Finally it carries on the concrete situation simulation to the emergency system, it realizes the feasibility basis and finds the new direction to solves the single command system. meanwhile, it makes the theoretical basis for the development of emergency command system software.