Mobile network active defense method and device

The invention relates to a mobile network active defense device, which comprises a dynamic link selection module, an enhanced transmission module, an active trapping module and a dynamic receiving module, and is characterized in that the dynamic link selection module randomly selects a network link reaching a destination end at a source end of a mobile network; the enhanced transmission module randomly selects a plurality of links at the source end of the mobile network to perform redundant transmission so as to prevent data tampering attacks in the transmission process; the active trapping module sends data with specific spoofing to a specific link at a mobile network source end, traps man-in-the-middle attacks to steal the data, analyzes, detects and locates leaked data through public information, and discovers a suspicious link; and the dynamic receiving module performs validity verification and information extraction on the received data. According to the method, the diversity anddynamics of mobile networ