The traditional LED intelligent glass display control system needs a computer as the video source for real-time video output, but it is not convenient to use in small-scale occasions, so this paper designs a portable video playing control system which is separated from the real-time video source. The system is mainly composed of two parts: video output unit and video forwarding unit. Video output unit adopts CPU + FPGA dual core architecture based on operating system. The CPU reads the video data in the USB disk through the USB interface, draws the address mapping map in the specific built-in APP of CPU, generates the address mapping data, and sends the video data and mapping data to FPGA. FPGA reorders the video data and sends it to the video forwarding unit through optical fiber. The video forwarding unit receives and selects part of the video data. After anti Gamma correction, it is sent to the driving system to realize the control of LED on the display screen. Multiple video forwarding units are used to drive large-scale LED intelligent glass display screen in cascade. This system brings convenience to product application and has a wider range of application.