Bilateral filtering algorithm is an effective infrared image detail enhancement method,which has the effect of preserving edge and denoising the image.However,due to the large arithmetic operation,it is difficult to realize the algorithm in the infrared video image processing.A kind of infrared image enhancement algorithm with the FPGA realization method based on bilateral filter and platform histogram equalization is proposed,which selects the xilinx virtex-5 series chips,adopts pipelining and parallel processing technology,the operation time of the proposed algorithm is 40 ms for the image with the size of 640×480.The experimental results show that the proposed algorithm can improve the sharpness and contrast of infrared image,which meets the requirement for real time application of video image.