1. Nature difference: Type I institutions: mainly refer to institutions directly established or established by state organs, such as public hospitals and public schools. Category II institutions: mainly refer to institutions entrusted or authorized by state organs, such as private schools and private hospitals.

2. Functional differences: A type of institution: it mainly undertakes public service functions such as public education, scientific research, culture and health, with the goal of providing high-quality public service products for the society and meeting the basic needs of the people. Type II institutions: mainly undertake market service functions, such as tourism, catering and entertainment.

3. Management differences: A class of institutions: a unified national personnel system and salary system with strict management. The leading bodies of a class of institutions are usually sent by state organs and have a high political status. The second type of institutions: the personnel system and salary system are relatively flexible and the management is relatively loose.

Welfare of public institutions: stable working environment, competitive salary, good career development space, rich amateur life, and a sense of social responsibility and mission.

1. Stable working environment: institutions, as subordinate units of state organs, have high stability. Compared with enterprises, the work of public institutions is relatively stable and not easily affected by the fluctuation of market economy. Under the current severe employment situation, institutions provide a relatively safe working platform for job seekers.

2. Competitive treatment: Public institutions usually have higher wages and a relatively complete welfare system. In addition to the basic salary, there are various allowances, subsidies and bonuses.

3. Good career development space: Institutions usually have a clear job promotion system, and employees can get promotion opportunities through assessment and selection. At the same time, the job conversion within institutions is more flexible, and employees can choose their own jobs according to their own interests and specialties.

4. Rich amateur life: The working hours of public institutions are relatively regular, and generally they will not work overtime until late. This provides employees with more spare time, which can be used to participate in various cultural and sports activities, travel and vacation.

5. Have a sense of social responsibility and mission: As an important part of national public welfare undertakings, public institutions involve education, scientific research, culture, health and other fields.