Fluid-solid coupled heat transfer is a key problem that need to be solved in the refined design of regenerative cooling thermal protection systems. The calculation methods of heat transfer between hot gas and chamber wall are introduced in this article, the calculation methods of heat transfer between the coolants and coolant channels are also introduced, including the special factors that affecting the heat transfer, such as the secondary flow of coolant, supercritical characteristics, splitting decomposition and coke of fuel, and so on. Then, the calculation methods of fluid-solid coupled heat transfer in regenerative cooling system are summarized, including whole domain algorithm method, partition algorithm method based on criteria equation, and partition algorithm method based on continuity boundary conditions. Finally, the development direction of calculation methods of non-steady heat transfer in regenerative cooling system are explored.