From 65438 to 0994, China implemented a single and managed floating exchange rate system based on market supply and demand. The People's Bank of China publishes the weighted average price of RMB as the benchmark exchange rate on a daily basis according to the price of inter-bank foreign exchange transactions on the previous day. Foreign exchange transactions between banks and customers can fluctuate within the benchmark range of 0.0025, and inter-bank foreign exchange transactions can fluctuate within the benchmark price range of 0.003. At the same time, we should consolidate the exchange rate and implement a single exchange rate system.