The invention relates to a monitoring system, and specifically relates to a monitoring system for the videos of a microwave relay station in an electric power system and an application thereof. The system comprises a wide area network (public network), at least two pieces of DVR mainframe equipment connected with the wide area network, at least four cameras connected with each piece of DVR mainframe equipment, and a smart mobile phone terminal or a notebook computer or a desktop computer connected with the wide area network, wherein the DVR mainframe equipment and the cameras are arranged in the microwave relay station I, and the smart mobile phone terminal or the notebook computer or the desktop computer is arranged in a monitoring and control management centre II. The system disclosed by the invention realizes uploading for a remote video system to a master control centre, and carries out unified management, and video forwarding, monitoring and control on various front-end monitoring points (cameras). The system is a 'digitalized, networked and centralized-management' intelligent network monitoring and control management system, and achieves the objectives of 'system integration, information storage networking and maintenance management intellectualization'.