The event driven characteristics of cyber physical system are discussed. Aiming at the defects of the current frame event model

which is the life cycle and the fusion of events are not considered enough

in order to ensure the validity and legitimacy of event response

the multiple group representation of the event is given. Multiple groups include the type of event

the observer

the occurrence of the object

the time and place of the occurrence

the variables that describe the variables

and the reliability value. Through the simulation of unmanned aerial vehicle formation control based on event mechanism

the validity of the method is verified.