Ti-Al composite coatings were fabricated on titanium alloy surfaces using laser cladding technology with a coaxial argon gas protection feeding mode. AlSi10 aluminum alloy powder served as the cladding material. The microstructure and properties of the composite coating were analyzed by SEM, XRD and EDS. Analysis revealed that the Ti-Al coatings are primarily composed of Ti, Al, Si, and V, with the atomic ratio of Ti to Al varying across different coating regions. The coating is composed of a variety of Ti-Al intermetallic compounds and elemental metals, the main intermetallic compounds are Ti0.6Al3V0.33, Ti7Al5Si12, TiAl3, TiAl2 and so on. The surface hardness of Ti-Al coating increases gradually from the substrate to the outside, and shows a decreasing trend after reaching the peak value at the joint of the coating. The maximum surface hardness at the joint of the coating is 788.3 HV, which is approximately 1.8 times of the matrix. When the laser power was 1 200 W and the scanning speed was 15 mm/s, the coating performance was better and the defects such as holes and cracks were the least.