according to social functions, existing institutions are divided into three categories: administration, public welfare and business services.

first, administrative institutions. Refers to the institutions authorized by laws and regulations and approved by the prescribed procedures to exercise administrative functions. The direction of reform is to return functions and adjust institutions.

second, public welfare institutions. It is divided into three categories:

1. Public welfare institutions. Refers to institutions that involve national security, public security, public health, public culture, economic and social order and citizens' basic rights, and institutions that cannot or should not allocate resources by the market, and institutions that only provide support and guarantee for the government to perform its functions. The purpose and business scope of such units shall be determined by the government and strictly supervised, and shall not engage in business activities.

2. Public welfare second-class institutions. Refers to the public welfare services that are provided to the whole society and involve the general needs of the people and the needs of economic and social development. The government supports them, which can partially realize the allocation of resources by the market, and the institutions that mainly provide support and guarantee for the government to perform its functions. Such units carry out activities in accordance with the public welfare objectives and relevant standards set by the state, and can carry out relevant business activities according to law on the premise of ensuring the realization of public welfare objectives. The operational income obtained according to law is mainly used for the development of public welfare undertakings.

3. Public welfare institutions. Refers to the institutions engaged in business activities with certain public welfare attributes, but with a high degree of socialization and strong ability to connect with the market, which can basically realize the allocation of resources by the market.

third, operating service institutions. Refers to the institutions engaged in production, operation and service activities, which have realized or can realize the allocation of resources by the market after adjustment, and their reform direction is to turn into enterprises.

the above is all the answers to the classification of public institutions.