Abstract: A chemical data handling system is characterized by a display system which displays each data of many compound with an image of a table sheet where the chemical structures are arranged in the direction X and general characteristic data items are arranged in the direction Y. For realizing the display of the entire large scale data table, the system provides a special scroll function. In the case of lateral scroll, the chemical structure display column arranged vertically is fixed at the left side of screen, and the remaining data columns are scrolled laterally. In the case of a vertical scroll, the data item display row arranged laterally is fixed at the upper side of screen, and the remaining data rows are scrolled vertically. Moreover, it is possible to display not only the data table but also a chemical structure list or a chemical data correlation graph.