Abstract:The world economy is currently facing great challenges since the Great Depression. In particular, the inflation index in the United States remains high and hit a record high, which has brought greater uncertainty for the global macro-economic operation and macro-economic policy-making. US inflation will continue to climb in the first half of 2022 and remain at historically high levels throughout 2022. In the next two to three years, US inflation is expected to remain at high levels, but in the medium and long term, inflation will gradually fall from a relatively high level in the future with the normalization of factors such as the tightening of monetary policy and the mismatch between supply and demand. Since US inflation and the subsequent Fed’s policy of raising interest rates have a significant impact on the international financial markets and non-ferrous metal prices, it is necessary to conduct an in-depth study on the causes, motivations and future trends of US inflation, which to provide reference and guidance for future forecast of non-ferrous metal price trends.