Abstract: An electronic catalog has a body and an exhibition apparatus. The body is an exterior protecting structure. The exhibition apparatus has a display module, a control module and an input module. The display module is mounted in the exhibition apparatus and has a screen mounted on the exhibition apparatus. The control module is electrically connected to the display module. The input module is mounted on the exhibition apparatus and is electrically connected to the control module. The input module has a storage mounted in the exhibition apparatus, and a slot disposed on the exhibition apparatus and electrically connected to the storage. Digital files are stored into the exhibition apparatus via the slot and are displayed on the screen. Thus, the old digital files can be replaced by processing files of new products rather than making new paper catalogs, thereby decreasing cost, saving resources, and facilitating convenience.