The nonsubsampled Contourlet transform is built upon nonsubsampled pyramids and nonsubsampled directional filter banks and provides a shift-invariant directional multi-resolution image representation. The nonsubsampled contourlet transform and its coefficients characteristics are introdued. A method for image fusion based on nonsubsampled contourlet transform is presented, which could extract the edge and detail coefficients and fuse the information in high and low resolutions efficiently. The multi-direction and multi-resolution method fully extracting the fusion information, improves the image definition and information quantity by using different fusion methods in different frequency and directions, which overcomes the directional limitation of Wavelet. By simulation experiment and comparison with other arithmetic, the validity and superiority of the method are proved.