In this paper, an infrared image acquisition and processing system based on ADSP-TS101S is presented. Several critical techniques for image acquisition and image processing are described in detail. In the system, an ADSP-TS101S is used to implement the preprocessing of images, a CPLD is used for logical control and a CDCI is used for data transmission. The test results have shown that the system has the features of good real-time performance, high calculation effectiveness and good operation stability.