Method, terminal, server and system for controlling terminal network cards

The invention provides a method, terminal, server and system for controlling terminal network cards. The method includes the steps of enabling the server for controlling the terminal network cards to circularly broadcast a partial control table at broadcasting frequency points of the partial control table according to a preset second period, wherein the partial control table comprises network card control information corresponding to all digital television terminals in an area, enabling the digital television terminals to receive the partial control table, enabling each terminal to search network card control information corresponding to the terminal in the partial control table according to the terminal identification of the terminal, enabling each terminal to judge whether the network card of the terminal is required to be stopped or not according to the network control information corresponding to the terminal, if the terminal is required to be stopped, stopping the network card of the terminal, and if the terminal is not required to be stopped, starting the network card of the terminal. By means of the scheme, the terminal network cards are controlled to be started or stopped by the fact that the front terminal server issues the control information to the terminals, the number of useless connection of the terminals without requiring a bilateral network is reduced, and the cost is saved.