Network security protection system and method for video monitoring front-end equipment

The invention relates to a network security protection system and method for video monitoring front-end equipment, and the system comprises a video monitoring front-end equipment sensing and finding module which carries out the regular, partitioned and domain scanning of a subnet where the video monitoring front-end equipment is located based on a network protocol according to divided subnet segments; in the video monitoring front-end equipment ledger sorting module, the video monitoring front-end equipment information acquired by the video monitoring front-end equipment sensing and finding module is brought into ledger management; in the video monitoring front-end equipment network access authentication module, MAC (Media Access Control) authentication is started on a network switch accessed by video monitoring front-end equipment, and whether a port is safe or not is judged by verifying MAC address information of equipment under the port; and in the video monitoring front-end equipment safety protection mod