Laser cladding experiment of Ti+TiC was carried out on Ti-6Al-4V alloy surface. The microstructure of the clad layer was observed by SEM. The microstructure and its formation mechanism have been explained by using a microstructure formation process model. The titanium based composite made from Ti+TiC powders by laser cladding has been analyzed from the aspects of preparation process, quality, technology, production cost and reinforcing effect.