The advantage of fabrication of one-step rainbow hologram by using an imaging lens with large aperture and large relative aperture is that the reconstruction image possesses highly steroview and orthosoopic view. For example, the aperture and relative aperture of the imaging lens must be more than 340 mm and 0.85, if the size of hologram is 90 mm and the distance of the observer is 250mm away from the hologram. An aspherical mirror with aperture of 240 mm and focal length of 230 mm is used in the experiment. The equipment with the aspherical mirror as the imaging lens is given. The experimental results and some related problems are discussed. The reconstructed image has a good resolution and high ratio of signal to noise.