For the calculation complexity problem of image fusion based on non-subsampled contourlet transform(NSCT), an algorithm of combining the NSCT with compressive sensing(CS) is presented. Firstly, based on the characters of the CS theory in image fusion, the method of rebuilding the images is modified. Then the NSCT is used to decompose the images, and the image fusion approach based on CS is applied to the decomposed band-pass sub-band coefficients which are featured with high calculation complexity to obtain the band-pass fusion image. Finally, the inverse transform of NSCT is used to fuse the low-pass fusion image and band-pass fusion image to gain the final fusion image. The simulation results show the effectiveness of the proposed approach.