Virtuality and reality combined network security situation awareness simulation method and system

The invention relates to the field of network security and discloses a virtuality and reality combined network security situation awareness simulation method. The method comprises the following steps of: constructing a real system comprising a plurality of real object devices, connecting the real system with a computer-simulated virtual simulation network system to form a virtuality and reality combined security situation awareness simulation network, generating a real network attack data stream by a network attack device, converting the real network attack data stream into a virtual network attack simulation data stream via a data conversion channel, and entering a virtual network security situation awareness simulation system from a simulation mapping node corresponding to the real network attack device. The method is used for solving the problems of low modeling efficiency, low accuracy and difficult verification of simulation result credibility in the traditional network security situation awareness simul