A near-infrared image simulation method based on spectral correlation is proposed. The remote sensing image-link model, and spectral correlation between visible multispectral and panchromatic for satellite sensors were analyzed, and the spectral correlation coefficient was calculated. Thus the simulation near-infrared image was generated based on the spectral correlation coefficient. In order to improve the speed of near-infrared image generation, the SIFT algorithm based on GPU was used. The proposed method utilized the data of Jilin-1A optical sensor to generate the simulation near-infrared images. The computation time of individual image was better than 3 s, and the simulation image had better effects for synthesis of true color image and removal of cloud and haze.