Abstract: A coin wrapping machine including a coin stacking section for stacking deposited coins, a coin wrapping section for wrapping coins stacked by the coin stacking section and a coin supporting post for supporting the stacked coins and moving them from the coin stacking section to the coin wrapping section, the coin wrapping machine further including a light projector disposed between the coin stacking section and the coin wrapping section for projecting light onto the stacked coins being moved from the coin stacking section to the coin wrapping section, a line sensor disposed between the coin stacking section and the coin wrapping section for photoelectrically detecting light impinging onto the stacked coins from the light projector and reflected by edges of the stacked coins and a CPU for detecting portions between adjacent coins based on detection data produced by the line sensor, thereby determining the number of the stacked coins supported by the coin supporting post.