Invention and using of the steam engine and power technology lead to the two industrial revolutions, which have great impetus to the course of human history. The existing widely used steam technology also results from that. Here, we would like to introduce steam technology history through the two industrial revolutions. The enterprise should depend on energy saving to survive. In all steam application industries, energy saving is throughout its whole process.. Hence, energy saving will be the outlook of steam technology development. Since the first industrial revolution, steam always goes with people's production and life.