To provide an interior material order reception system for guiding the improvement of evaluation and performance of an agent engaged in real estate transactions by preventing a gap between an image during ordering and reality from being felt as much as possible and improving the satisfaction of a tenant.SOLUTION : A system includes : means 120 for projecting an image for reproducing an unchangeable condition about the layout of a room with a user wanting to move thereinto and the desired room including the arrangement of windows, columns and beams in a room including a white floor and white walls; means 130 for variably projecting an image of fittings including sashes and sliding doors or wallpaper, and an image of any one or more of furniture, curtains and a floor material in the room according to the desire of the user; means 140 for receiving a design related to fittings or wallpaper desired as interior decoration of the room desired by the user; and means 220 for manufacturing fittings or wallpaper corresponding to the design.SELECTED DRAWING : Figure 3