1. The applicant's household registration is in Lanzhou.
2. The applicant and family members have no housing in Lanzhou or the per capita housing area of the family is less than 13 square meters (including 13 square meters).
3. The average monthly family income is less than 3,773 yuan (including 3,773 yuan).
4. There is a legal relationship of support, support or maintenance between family members.
5. An unmarried single applicant who has reached the age of 35 can apply as a one-person family.