Generally speaking, responsibility of the conserve of the building, maintenance ought to be assumed by lessor. Lessor ought to is opposite rental building is fixed conserve, it is normal to make the building is in can use position. Tenant discovers the building damages, ought to inform lessor, lessor ought to seasonable rehabilitate, or the attaint circumstance according to the building, by lessor or lessor entrusts formulate of property management department maintenance plans and the organization is carried out. When lessor conserve and maintenance building, ought to adopt measure to decrease to use the influence of the building to tenant. Tenant ought to use a building normally during rent, if be used because of tenant undeserved cause a building to damage, tenant agree carries maintenance responsibility.