Phosphor copper ball with grooves at surface and preparation method thereof

The invention discloses a phosphor copper ball with grooves at the surface and a preparation method thereof. The phosphor copper ball comprises a phosphor copper ball body, and grooves arranged at the surface of the phosphor copper ball body at intervals, and the height difference between the bottoms of the grooves and the surface of the phosphor copper ball body is 1-3mm. Compared with the existing solid phosphor copper ball which is smooth and flat in surface, the phosphor copper ball with the grooves at the surface provided by the invention has large superficial area, can bear greater current, discharges more copper ions in the electroplating process, and is high in usage rate.