The paper proposes an approach which adopts the technology of multi -channel EDMA transfer chaining with ping - pong buffering for data transmission. Firstly ，the configuration of EDMA3 controller is presented. Then the implementation process of the method is discussed. The method is verified by the experiment ，in which three -channel image data is transferred synchronously to image processing system based on TMS320C6455 DSP. The result shows that ，compared with the mode of respective data transmission with multi -channel, the efficiency of the data transmission would be improved by 18%, and 66% CPU resource can be saved. Furthermore, the data transmission via the proposed method is more safe and reliable.