1. Family members: Understand the basic information of family members, including age, occupation, health status, etc.
2. Income and expenditure: Understand the income sources and expenditures of families, including breeding, going out to work, government subsidies, etc.
3. Housing security: understand the family's housing situation and living environment, including housing structure, facilities and equipment.
4. Children's education: understand children's education, including enrollment, study status, family burden, etc.
5. Medical security: Understand the family's medical security, including medical insurance and assistance policies.