Abstract
This thesis proposes the social and historical development background what impacts invention of the steam engine; the simple principle of the steam engine；predecessors made the exploration and preparation what for the invention of steam engine in the final; before and after the invention of the steam engine, understanding on phenomena of atmospheric pressure, siphon in Physics; at that time, the mechanical aspect of technology, such as the application on leverage, crankshaft and so on；the technical problems and solutions encountered in the course of invention of the steam engine; the development and the rise of decline of the steam engine; finally summed up what should be learned from the history of invention of the steam engine and affirmed the steam engine for the development of human society tremendous role.
Keywords: The steam engine Cylinders Reciprocating Thermal efficiency Heat engine
