To provide a picture display system capable of preventing the instructed position image of an indicating tool from being hidden behind the shadow of the indicating tool, and comfortably performing the operation.

This picture display system is provided with a projection type picture display device 2 which displays a picture on a screen 5 and a coordinate detector 1 which detects position coordinates corresponding to the position of an indicating tool 4. A computer 3 displays an instructed position picture indicating the instructed position of the instructing tool 4 at the position coordinates in a prescribed distance according to the position coordinates detected by the coordinate detector 1.