Recently, the Fed has accelerated the tightening of monetary policy, which has attracted attention from outside China. After discussing the topic of shrinking the table, many Fed officials spoke again on the path of raising interest rates in May in the recent week. US Federal Reserve Chairman Powell believes that it is necessary to put the interest rate increase ahead, and the interest rate 50bp increase will be discussed at the interest rate meeting in May. At present, Federal Reserve officials such as mester, Evans, Williams and Daley support raising interest rates by 50bp in May. The "Hawk king" Brad believes that the Fed should quickly raise interest rates to neutral interest rates, and does not rule out the possibility of a single interest rate increase of 75 basis points. Waller previously said that interest rates should be increased more in June (more than 50bp). However, Evans, Bostik and mester have stated that it is not necessary to increase the interest rate by more than 50 BP in a single time, so it is not urgent to make the interest rate exceed the neutral interest rate. After many officials spoke, the market expected that the probability of raising interest rates by 50bp in May was about 100%, much higher than 66% a month ago. Meanwhile, the market expects the probability of raising interest rates by 75bp in June to be about 92%.