A method, an apparatus and a cell for displaying three-dimensional object are provided. The method is adapted to a display having a plurality of cells. In the method, a three-dimensional image data is retrieved. Depth information and color information of each of pixels in the three-dimensional image data are analyzed. Deformation voltages are correspondingly generated according to the depth information and respectively outputted to the cells, so that the cells are deformed to form a three-dimensional object. Discoloration voltages are correspondingly generated according to the color information and respectively outputted to the cells, so that colors of the cells are changed.