The invention discloses unfired aluminum-silicon carbide composite carbon bricks. The unfired aluminum-silicon carbide composite carbon bricks are prepared from 5-8 parts of high-aluminum material, 40-50 parts of brown alumina, 16-22 parts of dense corundum, 8-15 parts of silicon carbide, 8-10 parts of graphite, 2-3 parts of Guangxi white clay, 0.5-1.5 parts of carbon black powder, 1.5-2.5 parts of additives and an additional binder, of which the weight is 3% to 4% the overall weight of the raw materials. The unfired aluminum-silicon carbide composite carbon bricks have the advantages that high-purity raw materials are adopted, reasonable grain size distribution is performed, and the carbon black raw material is added, so that the refractoriness under load, high-temperature strength and slag erosion resistance of finished brick bodies are improved greatly, and the thermal shock stability is good. By taking the unfired aluminum-silicon carbide composite carbon bricks as lining bricks ofiron melt ladles and torpedo ladles, service lives of the iron melt ladles and torpedo ladles can be prolonged greatly, the labor intensity of maintenance of workers is lowered, energy is saved, andthe discharge of wastes is reduced.