The invention provides a method for realizing a 3D visual effect on a furniture surface by using a 2D image, belonging to the field of furniture. The method comprises the steps of determining different scaling ratios in different corresponding positions on the external surface of a sofa according to each 2D-decomposed pattern in the process of carrying out 3D decomposition on a 2D plane image; scaling the 2D-decomposed pattern according to the corresponding scaling ratio to obtain a 2D-decomposed pattern to be printed; respectively printing the scaled 2D-decomposed pattern to be printed on fabrics forming sofa decorative wrapping cloth by using an ink-jet printing/printing machine; and conventionally cutting, sewing and re-processing the fabrics to obtain a sofa cover or a sofa sleeve product. Through correspondingly scaling each 2D-decomposed pattern, the invention assures that the display scale of each part of a whole image seen at an optimal viewpoint is more suitable for the original 2D plane image and enables the displayed image to present a distinct visual effect closer to the original 2D plane image. The invention can be widely applied to various cloth manufacturing fields related to the furniture.