The invention relates to the technical field of comprehensive emergency management, in particular to a decision-making and command all-in-one 
machine based on a digital predetermined plane and an operation method of the all-in-one 
machine. The all-in-one 
machine comprises a basic platform layer, a predetermining 
plane layer, a service 
application layer and a user layer in the aspect of architecture and adopts the design combining an application 
system and a hardware platform as a whole, can cope with natural hazards, accidents, disasters, 
public security, social security and various emergencies, and meets core requirements for analysis, judgment, 
decision making, scheduling, commanding and emergency management of 
public security emergency management. By means of integral design of the decision-making function and the command function and the all-in-one architecture combining practical auxiliary 
decision making of seven decision-making support technologies, the application 
system and the hardware platform, investment is little, implementation is easy, effects are fast, and professionalization is achieved. The all-in-one machine can be used for an intelligent emergency 
decision making and command 
scheduling system.