In March, China's official manufacturing data was better than expected and returned to the line of prosperity and decline. In non-official manufacturing data, it was also better than expected to stimulate the rebound of copper market. SHFE copper futures fluctuated above 39,000, with short-term capital pushing up copper prices. Judging from the current situation, the beautiful domestic data have helped the copper market in the epidemic. However, the growing epidemic situation in Europe, America and other countries led by the United States is placing increasing pressure on the global economy. The need for follow-up epidemic prevention has weakened global demand. It is estimated that most of the funds are mainly for short-term profits, which has kept copper prices under repeated partial suppression. However, China is a large copper country, and the basic stability of the domestic epidemic situation is also conducive to the support of the lower copper price.