Abstract: This paper presents a review summary of the current state-of-the-art stirring in reverberation chamber (RC). An RC is an important device for conducting electromagnetic compatibility, electromagnetic effect testing and wireless channel simulation in a limited space. The stirring technique is the soul of a RC. The focus is  introducing the research history and current situation of the stirring techniques at home and abroad from two perspectives, i.e. changing the boundary conditions and the configuration of the excitation source in an RC. In particular, some representative implementation schemes are discussed, and the characteristics of various methods are summarized. Finally, the research progress of mixed stirring techniques is also introduced.