In the first three quarters of 2022，the growth rate of national investment declined sharply at first，then stabilized and rebounded. State-owned investment maintained rapid growth，while private investment growth continued to decline. Infrastructure has become a key area for keeping investment stable，and investment in some manufacturing industries，high-tech industries，and people’s livelihood areas has increased rapidly. The investment recovery in the central and western regions has strong momentum and good sustainability. The prominent problem that affects the investment recovery and growth is the lack of willingness and ability of social investment，especially private investment. The key to keep investment stable in the future is to reverse the expectation of social investment，especially private investment，and combine expanding domestic demand with deepening supply-side structural reform. In accordance with the requirements of accelerating the construction of new development paradigm and promoting high-quality development，in regard to the institutional mechanisms and policy factors that inhibit investment vitality，we should deepen the reform of investment and financing system and related fields，release the vitality of social investment，give better play to the guiding role of government investment，continuously strengthen weaknesses，constantly improve the efficiency of investment management，and promote the effective improvement of investment quality and reasonable growth of investment quantity.