Since the 1990s,world economy development has been characterized by a decline in speed and a pattern of'rising in the East and declining in the West'.Scientific and technological progress,trade and investment,division of labor,macroeconomic policies and geopolitical games are the main factors affecting the trend of the world economy in the past period,and they are also the key variables determining the growth rate of the world economy in the coming period.On the whole,the world economy in the'15th Five-Year Plan'period will still be in a period of deep adjustment after the international financial crisis,gradual recovery period after the new coronary pneumonia epidemic,and an obvious increase period in the number of factors of instability and uncertainty,forming a'triple overlay'stage.It is more difficult to get rid of the unstable,bittersweet recovery,insufficient momentum and weak confidence,and low growth and insufficient effective demand will become the new normal.In this regard,China should,on the one hand,continue to do its own thing unswervingly and enhance its confidence and ability to cope with external shocks;on the other hand,it should be mindful of the world and con-tribute to the growth of the world economy with its own high-quality development.