Investment is not the attribute of modern society.However，new changes have taken place in the economic environment of the new era，which have a profound impact on investment behavior，investment and investment.Investment should be closely related to the transformation of major social contradictions and policy changes.To keep the concentration，focus on mining the supply of public goods and services，new industrial system construction，the “double” strategy in the field of opportunity.In the spirit of implementing the “key role of investment to optimize the supply structure”，state-owned capital should be carried on.