(2D-Tif)/Al composites reinforced with TC4 fibers fabric was fabricated by pressure infiltration method for the demand of debris protection of aircrafts. The impact resistance ability, macro-damage characteristic and microstructure evolution principle of the two types of composites were researched by two-stage light gas gun (at a velocity of 2.5 km/s). Results show that the failure characteristics of (2D-Tif)/Al composite targets are comprised of the penetration and the spalling on the back surfaces. The prospection capacity of the composites is twice higher than those of the LF6 alloy. Aluminum alloy matrix are squeezed and deformed seriously near the crater and micro-cracks as well as holes are dominated in the matrix. Analysis show that adiabatic shear band inner the alloy matrix is restrained obviously by the addition of TC4 fibers