Total factor productivity (TFP) is a crucial factor influencing the economy. As we all know, the flexibility and volatility of the RMB exchange rate have been significantly enhanced after the exchange rate reform on "8.11" in 2015, China. As the exchange rate and TFP are both important factors in the economy, the study of the impact of the exchange rate on TFP has been a hot topic for scholars at home and abroad. This review is of great significance for guiding China's high-quality development and promoting the formation of "new quality productivity". At present, research on the impact of exchange rates on total factor productivity can be mainly classified into two categories: the level of exchange rates and the effects of exchange rate fluctuations on total factor productivity. As the exchange rate cannot directly influence TFP, understanding the mechanism of how the exchange rate impacts TFP is crucial.