The invention relates to an embedded asynchronous LED display screen control system, which has functions of vast data-amount communication, massive data storage and high gray scale image and video playing. The system realizes the vast data-amount communication and massive data storage by utilizing an Ethernet interface and a CF card interface on an embedded CPU, outputs video information, controlinformation and loading information to an FPGA of an LED synchrosystem by utilizing an LCD interface and a GPIO port on the embedded CPU, and outputs the information onto a display screen after the LED synchrosystem completes information processing synchronously.