Abstract:A new type of Computer-generated Fourier Transform Hologram(CGFTH) with the ability of self-focusing is described in this paper.A suitable quadratic phase factor is added to the CGFTH.So that there is no need of Fourier lens in reconstruction process. In addition to the reconstruction image,the conjugate image would be recomstructed in another plane.Expreimental results are conformed with the theoretical analysis.