Generally speaking, affordable housing is some resettlement houses set up by the government for some low-income people. This kind of housing has complicated application procedures and needs some relevant certificates to enjoy some living benefits brought by affordable housing. For affordable housing, the price is low and the geographical location is good. For life, this kind of housing is enough to ensure the basic needs of the general population, and can follow the local policies, which can provide a very good guarantee for preschool children's enrollment, compulsory education, medical facilities and so on. The application of affordable housing needs to be based on local standards, target groups, price limits and policy notices. The categories of affordable housing can be divided into low-rent housing and affordable housing that low-and middle-income people can buy. To put it simply, some needy families and singles can apply for purchasing or renting affordable housing according to local policies, while married people need to apply for corresponding housing subsidies and some housing needs as a whole family. According to the income standard of families and personnel in difficulty, it needs to be calculated according to the local income level. If there is no housing and hidden assets under the name, you can apply for the purchase and lease of affordable housing. The process of applying for affordable housing is as follows: after the applicant announces the housing information in the local housing authority and confirms that he has obtained the qualification of renting affordable housing, he will go to his community to get the form and prepare the materials and certificates he needs to bring when applying. After the lottery, he determined the order of house selection, registered the house selection by family or individual, and submitted the application form for affordable housing with complete materials and self-filling to the community for review. After the approval, it was submitted to the corresponding service center for approval, and finally submitted to the affordable housing center for final review, and the corresponding purchase/rental agreement was signed, and the application for affordable housing was successful.