The invention relates to a multiple tunnel concurrent model implementation method based on virtual network card technology, which comprises the following steps: when a tunnel is built, a virtual address is obtained by applying the processing course of the procedure, the use case of the virtual network card is carried out, file description words communicating with the virtual network card are established; after the virtual network card receives the data transmitted by a protocol stack, transmits the data packet to the corresponding file description words according to the destination address ofa data packet, thus processing the data packet by the right processing course; the processing course of every tunnel is divided into tunnel establishment, data transmitting and tunnel dismantling; when the tunnel is established, a client sends tunnel establishing requests, a new course of the application procedure fork of a tunnel gateway processes the requests; after the tunnel is successfully established, the tunnel gateway is responsible for transmitting the communication data between the client end and an application server; when the client end cuts tcp connection or over time, the tunnelconnection is dismantled; the tunnel gateway recovers the virtual address distributed by a recovering address pool, and the virtual example of the virtual network card is canceled.