To solve the problem of high noise and edge blur commonly present in infrared images, a new infrared image processing method is proposed. According to the theory of an integral image, the noise reducing and strip removing algorithm combined with a high frequency enhance filter is given. The special software is designed and good processing effectiveness is obtained. The simulation result shows that compared with the traditional method, this method has the advantages of high speed, good adaptability and obvious strip removal ability and can retain the details in the original image as many as possible.