The invention discloses an aluminum-titanium-based alloy material. The alloy material comprises substance components including, by mass percent, 8%-10% of titanium, 2%-4% of chromium, 4%-5% of nickel,1%-2% of neodymium, 1.5%-2.5% of manganese, 0.8%-0.9% of tungsten, 0.1%-0.2% of boron, 0.3%-0.5% of silicon, 0.15%-0.25% of calcium, 0.35%-0.45% of zinc, 0.2%-0.4% of magnesium and the balance aluminum and inevitable impurities. The invention further discloses a preparing method of the aluminum-titanium-based alloy material. The preparing method comprises the following steps that firstly, the following substance components including, by mass percent, 8%-10% of titanium, 2%-4% of chromium, 4%-5% of nickel, 1%-2% of neodymium, 1.5%-2.5% of manganese, 0.8%-0.9% of tungsten, 0.1%-0.2% of boron, 0.3%-0.5% of silicon, 0.15%-0.25% of calcium, 0.35%-0.45% of zinc, 0.2%-0.4% of magnesium and the balance aluminum are weighed, mixed and evenly ground; secondly, the evenly-mixed raw materials in thefirst step are roasted, the roasting temperature ranges from 1,300 DEG C to 1,500 DEG C, the roasting time ranges from 20 min to 30 min, cooling is conducted, and the aluminum-titanium-based alloy material is obtained. The aluminum-titanium-based alloy material has the beneficial effects that strength is high, plasticity is good and stress resistance and corrosion resistance are both good; and thepreparing technology is simple, and operation is easy.