The invention relates to a digital screen control system and in particular relates to a digital screen control system capable of realizing real-time communication. The digital screen control system comprises a signal transmitting terminal, a control circuit board and a digital display screen, and is characterized in that the control circuit board comprises a communication module, a single chip microcomputer module and a GPS (Global Positioning System) positioning module; the communication module is used for receiving a network signal transmitted by the signal transmitting terminal and transmitting an analogue signal; the single chip microcomputer module is connected with the communication module through a serial port, and is used for converting the received analogue signal to a digital signal, and transmitting the converted digital signal to the digital display screen through a serial port; and the GPS positioning module is used for transmitting positioning data of the digital display screen to the signal transmitting terminal. The invention provides one set of the digital screen control system capable of realizing the real-time communication. With the adoption of the system provided by the invention, long-distance and short-time data signal transmission is realized through a network signal and remote real-time control and positioning are realized by using a server.