Abstract: Stratosphere and troposphere are both important components in the Earth’s climate system, and many investigations have shown that there exists a close dynamical relationship between them. Stratosphere does not just passively receive the disturbances and wave energies from the troposphere. Strong stratospheric anomalies are able to influence the weather and climate which mainly happened in the troposphere as well. In this paper, we mainly review related researches about the interactions between stratosphere and troposphere. Starting from the disturbed factors coming from the troposphere, we have summarized the influences of the tropospheric wave actions, the QBO effects, the ENSO events and the 11-year sunspot cycle on stratospheric circulations. Then, the anomalous signals after the changes of stratospheric circulations which are propagated from the stratosphere down to the troposphere have been accounted. It is revealed that signals of the stratospheric AO anomalies are always ahead of the tropospheric ones. On the other hand, with the dynamic coupling processes between the stratosphere and troposphere, apparent stratospheretroposphere exchanges (STE) are bound to occur, and in different latitudes areas, the STE processes have different special scales and varying characteristics. Furthermore, the STE of air mass and chemical species is a significant process influencing the effects of trace chemical species emitted from natural and anthropogenic sources on the atmospheric composition. Finally, we have also discussed the development and application of numerical models for the middle atmosphere. For the improvement of the middle atmosphere models, the radiation scheme and the gravity wave parameterization scheme are the main focuses for physical processes, while the full coupling between atmospheric chemical and dynamical as well as micro-physical processes is another aspect of model development. Against the background of climate change, exerting further efforts to investigate the stratosphere-troposphere coupling system and their interaction has an important scientific and practical significance for a better understanding of the science of climate change and improvement of the projection of the future change of the climate system.