The exhaust steam of steam turbine dischargers its latent heat through condensing process, which is of great importance to build the Rankine Cycle in power station. The research on the mechanism of flow and heat transfer in condensing process and its mathematical modeling is reviewed thoroughly home and abroad. As to the fundamental research, the condensing phenomena outside a tube, inside a tube and at the surface of a plate are reviewed respectively. As to the mathematical modeling, the modeling of heat t...