Laser welding has entered the field of powder metallurgy material processing with its unique advantages, opening up new prospects for the application of powder metallurgy materials. For example, using the commonly used brazing method in powder metallurgy material connection to weld diamond, due to low bonding strength, wide heat affected zone, and inability to adapt to high temperatures and high strength requirements, the brazing material melts and falls off. Using laser welding can improve welding strength and high-temperature resistance.