A virtual security inspection machine (20, 30, 1, 2), which simulates a physical security inspection machine, wherein the physical security inspection machine is a machine which is used at airports, railway stations, bus stations, government buildings, embassies, convention centers, exhibition centers, hotels, shopping malls, large-scale activities, post offices, schools, logistics business or industrial detecting places, so as to check carry-on baggage or verify identities of people, the virtual security inspection machine (20, 30, 1, 2) simulates characteristics of the physical security inspection machine comprising a device identification, a channel size, a resolution, a state control function of on/off, a single/dual channel detection function or a transport carrying manner of the physical security inspection machine, and the virtual security inspection machine (20, 30, 1, 2) comprises: a first communication module, configured to establish a first communication link with a virtual or physical security inspection machine; a data duplication module, configured to acquire security inspection data from the other virtual security inspection machine or the physical security inspection machine in real time through the first communication link. and duplicate the security inspection data; a function simulation module, configured to simulate a characteristic of the physical security inspection machine and load the security inspection data duplicated by the data duplication module; a second communication module, configured to establish a second communication link with a virtual security inspection machine or a process mechanism, wherein the process mechanism comprises a transport control mechanism, an alarm mechanism, or components, persons or departments that specifically perform a process; and a result transmission module, configured to transmit a security inspection result of the virtual security inspection machine (20, 30, 1, 2) to a virtual security inspection machine or the process mechanism through the second communication link. a first communication module, configured to establish a first communication link with a virtual or physical security inspection machine; a data duplication module, configured to acquire security inspection data from the other virtual security inspection machine or the physical security inspection machine in real time through the first communication link. and duplicate the security inspection data; a function simulation module, configured to simulate a characteristic of the physical security inspection machine and load the security inspection data duplicated by the data duplication module; a second communication module, configured to establish a second communication link with a virtual security inspection machine or a process mechanism, wherein the process mechanism comprises a transport control mechanism, an alarm mechanism, or components, persons or departments that specifically perform a process; and a result transmission module, configured to transmit a security inspection result of the virtual security inspection machine (20, 30, 1, 2) to a virtual security inspection machine or the process mechanism through the second communication link.