Abstract: In order to meet the real-time processing requirement for the infrared sequential image processing and some algorithms such as image denoising, non-uniformity correction, image adaptive dissection, image measurement and mathematic model resolving in a specific infrared imaging position system, an effective scheme for transferring and exchanging infrared image data by DSP DMA is proposed. The application of DMA operation in the high-speed infrared real-time image processing system is introduced through a digital image processing system composed of AD21D62 and EP1C6. The experiment results show that the scheme can free DSP from the transmission of mass data, the customized image processing algorithm can effectively improve the real-time performance of digital image processing system and overcome the bottleneck problem existing in the system.