PURPOSE: To directly read out which order's load corresponds to a specified load bar part in a pile graph with a list at the time of adjusting loads, to simply specify plural orders whose production schedules are to be changed from the order concerned and to indicate the ratio of the specified orders as the load.

CONSTITUTION: This production scheduling device is provided with an extracted order list preparing means 10 for preparing an extracted order list (h) obtained by collecting all orders corresponding to a partial specified load in the pile graph (g), an extracted order list plotting means 12 for displaying extracted orders as a list, a selected order list preparing means 13 for preparing a selected order list (j) for orders selected from an extracted order list (i), a selected order list load plotting means 15 for plotting a load corresponding to selected orders on the graph (g), and a production schedule information changing means 17 for changing the production schedules of all the selected orders.