Abstract: Millimeter wave holographic imaging adopts the approximate model of far-field imaging, which leads to the degradation of final imaging quality. To solve the above problems, a millimeter wave near-field imaging algorithm based on distance compensation is proposed. In this algorithm, the approximate model of traditional imaging algorithm is improved by using the accurate model in near-field condition. The distance between the imaging plane and the antenna array is used for imaging compensation, and then the maximum projection and Lee filtering are used for imaging. The experimental results show that compared with the MMW holographic imaging algorithm, the proposed algorithm can not only improve the image clarity, but also retain more information of the imaging target.