The copper electron beam welding water-cooling plate is an essential and highly efficient heat dissipation element in electron beam welding equipment. It is made of copper with high thermal conductivity, and a complex and reasonable network of coolant channels is constructed inside. During the electron beam welding operation, it can quickly absorb the large amount of concentrated heat generated by the electron beam and carry it away through the coolant circulation. This effectively prevents the equipment from malfunctioning due to overheating,ensures the smooth and stable progress of the welding process, creates favorable conditions for obtaining high-quality welded joints, and greatly enhances the reliability and durability of the electron beam welding equipment.