A new complex encrypted image hiding technology based on discrete cosine transform (DCT) is presented. The complex encrypted image acquired by encoding the image to be hidden with double random phase is embedded in the DCT domain of the enlarged host image by rule. With neighbor pixel value subtraction (NPVS) algorithm, the hidden complex encrypted image is extracted from the coefficients of the host image hiding information transformed by IDCT and the original hidden image is restored with the correct double random phases. The correlation value of the host image hiding information and the decoded hidden image are studied with different embedding factor ω. The effect on the decoded hidden image is analyzed as the host image hiding information is cut by different occlusion and the three-dimensional object information hiding based on digital holography are also numerically simulated with ω=0.2. The results indicate that this image hiding technology has large capacity hidden information, robust anti-cut capacity and good security characteristic.