A novel three-dimensional (3D) imaging method based on orthogonal-stacked lenticular sheets and computer holography is proposed. Elemental image array (EIA) of 3D object propagated through the orthogonal-stacked lenticular sheets (OLS) are captured by a CCD camera. Sub-image array (SIA) used for generating the Fourier hologram of 3D object is obtained by recombination operation of the EIA. A complex value point in the hologram plane is determined by the two-dimensional (2D) integral operation after the corresponding sub-image is multiplied by an inclination phase factor. Numerical reconstruction of the calculated Fourier hologram at different distances based on Fresnel diffraction shows that the method is feasible for 3D imaging.