The invention relates to blast furnace taphole filled aluminum stemming and a preparation method thereof and belongs to the field of high-temperature metallurgical fireproof materials. The preparation method comprises the following steps of: premixing 40 to 50 mass percent of corundum, 12 to 30 mass percent of silicon carbide, 3 to 5 mass percent of micropowder, 8 to 12 mass percent of ball clay,1 to 3 mass percent of plasticizer, 2 to 4 mass percent of graphite, 3 to 5 mass percent of expanding agent aluminium silicate, 3 to 5 mass percent of metal powder, 3 to 5 mass percent of titanium corundum and 3 to 5 mass percent of modified asphalt powder for later use; adding the mixture into a wheel roller, and pre-rolling for 5 minutes; adding 15 to 20 mass percent of modified liquid tar; performing high-speed wheel rolling for 30 to 35 minutes, so that the Marshall value is 4 to 16 MPa; and measuring the Marshall value again after 3 days, wherein if the Marshall value is 8 to 24 MPa, theproduct is qualified. By the blast furnace taphole filled aluminum stemming and the preparation method thereof, problems of low high-temperature strength, low high-temperature toughness and environmental pollution of the stemming are solved; and problems of shallow iron notch, broken iron notch and spattering are solved at the same time.