The invention discloses heat-resistant reclaimed asphalt concrete and a preparation method thereof. The heat-resistant reclaimed asphalt concrete comprises the following components: new asphalt, a RAPmaterial, a regenerant, steel slag, ceramic micropowder, mineral powder, a new aggregate, silica and glass fiber; the regenerant includes the following components: base oil, a dispersant, an alkylated diphenylamine antioxidant, dichloromethane, an ultraviolet absorber, dicumyl peroxide, a surfactant, a SBS modifier, anhydrous ethanol, styrene butadiene rubber powder and hollow glass microspheres;and the preparation thereof is as follows: S1, collecting the RAP material; S2, preparing a first mixture; S3, preparing a second mixture; S4, preparing a third mixture; and S5, preparing the finished product. The heat-resistant reclaimed asphalt concrete of the present invention is excellent in crack resistance, durability, and high-temperature and rutting deformation resistance; in addition, the preparation method of the present invention has the advantage of making asphalt distribution uniform.