Housing maintenance fund actually includes housing public facilities special fund and housing maintenance fund. The special fund for housing public facilities is referred to as the special fund, which is used for projects such as the renovation of common parts of property and public facilities and equipment, and shall not be used for other purposes. Special funds to implement the principle of "money with the house". When the house is transferred, the remaining funds in the account are also transferred to the new owner of the house. When selling commercial housing, the purchaser and the selling unit shall sign the relevant maintenance fund payment agreement, and the purchaser shall pay the maintenance fund to the selling unit according to the proportion of 2-3% of the purchase price. The maintenance fund collected by the selling unit belongs to all owners and is not included in the residential sales income. Housing maintenance fund for public facilities and equipment after the expiration of the warranty period of large and medium-sized repair, renovation projects. Public part refers to the main load-bearing structure of the property (including load-bearing walls, columns, beams, floors, roofs, etc.). ), outdoor walls, hallways, stairwells, corridors, etc. ; Public facilities and equipment refers to the houses used by water pipes, water tanks, pressurizers, elevators, antennas, power supply lines, public lighting, fire-fighting facilities, green spaces, roads, ditches, pools, wells, non-operating parking garages, public cultural and sports facilities and facilities and equipment within the property management area. The water leakage in the house belongs to minor repairs and should be included in the property fee. The maintenance fund is an overhaul, and it is extremely difficult to apply.