中文：

宏观投资管理是指政府或中央政府对全国整体经济投资活动的调节、控制和监督。其主体是政府或中央政府，是国家经济管理的重要组成部分。宏观投资管理的目的是优化资源配置、促进经济发展、调节收入分配、保持国民经济稳定增长等。

宏观投资管理主体包括国家发展和改革委员会、财政部、中国人民银行等部门。这些部门在各自的职责范围内，制定和实施相应的投资政策，调节全国经济的投资活动。例如，国家发展和改革委员会负责制定国家重大投资政策，审批和核准重大项目，指导地方投资管理；财政部负责制定财政政策和货币政策，调节资金供需；中国人民银行则通过货币政策工具调节货币供应量和市场利率水平，影响投资活动。

宏观投资管理主体在实施管理时，需要遵循市场规律，尊重市场主体的自主决策权。政府的作用主要是弥补市场失灵，通过制定规划、政策、法规等手段引导市场主体进行符合国家整体利益的投资活动。同时，政府还需要加强对投资活动的监管，防范和化解风险，确保国民经济健康稳定发展。

英文：

Macro investment management refers to the regulation, control, and supervision of national economic investment activities by the government or central government. Its subject is the government or central government, which is an important part of national economic management. The purpose of macro investment management is to optimize resource allocation, promote economic development, adjust income distribution, and maintain stable national economic growth.

The main bodies of macro investment management include the National Development and Reform Commission, Ministry of Finance, People's Bank of China, and other departments. Within their respective responsibilities, these departments formulate and implement corresponding investment policies to regulate national economic investment activities. For example, the National Development and Reform Commission is responsible for formulating major national investment policies, approving and approving major projects, and guiding local investment management; the Ministry of Finance is responsible for formulating fiscal policy and monetary policy, adjusting the supply and demand of funds; the People's Bank of China adjusts the money supply and market interest rate levels through monetary policy tools, affecting investment activities.

When implementing management, the main body of macro investment management needs to follow market rules and respect the autonomous decision-making power of market entities. The government's role is mainly to make up for market failure, guide market entities to invest in line with national overall interests through the formulation of plans, policies, regulations, and other means. At the same time, the government also needs to strengthen supervision of investment activities to prevent and resolve risks, ensuring the healthy and stable development of the national economy.