A work data collection method is provided. The method includes
photographing through a video camera a series of different jobs done by
at least a worker, to record video signal of said jobs on a memory device
of said video camera; inputting a break point signal in said video camera
at each break point between said jobs, to record said break point signal
on said memory device of said video camera along with said video signal;
and displaying a list of titles of said jobs along with a clock.