To provide a method for previewing broadcast progress data capable of confirming broadcast data, in advance, by a broadcast image at an actual ON AIR time.

This method is characterized in that a shared video server 104 records at least main program sources and still picture sources used for broadcasting by a broadcast station, sources 12, 13 of a preview line of the shared video server are used in an actual broadcast image, in accordance with the broadcast progress data to preview at least the main program source and the still picture source, in advance.