The exchange rate represents the external value of a currency. Changes in exchange rates can affect a country's relative position in international trade. Politicians and economists worry about exchange rate variability for many reasons, chief among which is that exchange rate variability discourages trade. However, a large empirical literature on this issue does not confirm a significant effect of the exchange rate on trade volume [1]. Instead, other variables such as employment should be much more important from a practical point of view, as they are closely linked to people's livelihoods. With the deepening of China's opening-up, the adjustment of economic restructuring, and the continuous appreciation of the RMB in recent years, the issue of the RMB exchange rate is becoming the focus of attention at home and abroad. outside the country. However, affected by the financial crisis, China's real economic growth is slowing, enterprises are facing difficulties in operations, and the national employment situation is even more gloomy. Furthermore, it appears that as the US dollar appreciated between the 1970s and 1990s, many industries lost jobs. Therefore, studying the impact of changes in the RMB exchange rate on employment is of important practical importance.1.2 Review of domestic and foreign research1.2.1 Review of theoretical studiesA number of studies have attempted to measure the effects of exchange rate fluctuations on the adjustment of domestic employment in the country. and abroad. Theoretical studies mainly analyze the mechanisms and pathways through which exchange rate variations affect labor demand. Simon and Michael (1998) argue that the elasticity of employment to the exchange rate and the speed of adjustment to the exchange rate...... middle of article ......mainly in construction and at the aggregate level. If the real dollar exchange rate unexpectedly appreciates by 1%, overall employment will decrease by 0.09% (significant at 10%) and the construction sector employment rate will decrease by 0. 34%, which is significant at 5%. [6] Klein and Triest (2003) use U.S. manufacturing data from 1973 to 1993 and analyze them empirically, finding that exchange rate changes reallocate labor. In direct quote, the depreciation of the real exchange rate contributes to the destruction of jobs. Further study shows that trend changes in the real exchange rate significantly affect labor reallocation rather than the net employment level, while cyclical changes in the real exchange rate do not affect the net employment only by destroying jobs. And they expect the impacts to be greater as industries become progressively more open. [7].