The fusion weldability of high volume fraction (45% of SiC) SiCp/2024Al matrix composite is considerably difficult due to the loss of SiC and formation of Al4C3. The Al4C3 will seriously reduce the mechanical properties of the weld. The weldability of SiCp/2024Al matrix composite with 45% volume fraction of SiC is investigated by using a thin Ti-6Al-4V foil as the intermediate material. The results clearly show that the Ti content prevents the formation of Al4C3 during laser welding. The weld appearance is excellent. A weld joint reinforced with Ti5Si3 and TiC is produced. The maximum tensile strength is 258 MPa, which is 50% of the base metal.