The People's Bank of China on July 21st announced that the Renminbi will appreciate 2.1%.Analysis of current situation of Chongqing import and export trade reveals that the Renminbi appreciation will influence the import and export of mechanical and electrical products,agricultural industrialized products,Hi-tech products and so on.Chongqing should give up profit and not give up the market,decrease export cost,flexibly select payment currency,optimize industrial structure,expand processing trade and so on.