China's tertiary industry can be divided into four levels:1; Circulation department: transportation, post and telecommunications, commercial catering, material supply and marketing and warehousing; 2. Departments serving production and life: finance, insurance, geological survey, real estate management, public utilities, residents' services, tourism, information consulting services and various technical services; 3. Departments to improve residents' scientific and cultural level and quality: education, culture, radio, television, scientific research, health, sports and social welfare; 4. State organs, political party organs, social organizations, police, army, etc. , but not included in China's tertiary industry output value and gross national product.
It can be seen that this tertiary industry is basically a service industry.