To buy a house, you can raise the down payment through the following ways: 1. Make rational use of provident funds and use provident funds as much as possible. 2. Public institutions and employees within the establishment can apply for "salary loans". 3. Those with good qualifications can apply for credit loans. 4. Those who have old houses can sell their old houses and exchange them for new ones. 5. Those with insurance can apply for policy loans. 6. Lower the standards for buying a house. 7. Seek help from relatives and friends. If you have a good relationship with relatives and friends, you may consider asking for help.