The invention discloses a high anti-wear micro-copper alloy cast ball and a processing technique thereof. The high anti-wear micro-copper alloy cast ball comprises the following chemical components in percentage by weight: 2.0-3.0% of C, 0.8-1.5% of Si, 0.4-1.0% of Mn, 18-20% of Cr, less than or equal to 0.06% of S, less than or equal to 0.06% of P, less than or equal to 1.0% of Mo, 0-0.10% of Cu, 0-0.050% of B, 0-0.080% of Ti and the balance of iron. The processing technique comprises the following steps: (1) adding clean and dry common waste steel, a plurality of alloys such as ferromanganese and ferrochromium to a melting furnace as raw materials for mixing; (2) smelting at a temperature ranging from 1500 to 1600 DEG C; (3) performing modification treatment; (4) performing constant-temperature pouring; (5) performing quenching treatment; and (6) performing tempering treatment. According to the high anti-wear micro-copper alloy cast ball and the processing technique thereof, a unique formula and a comprehensive modification processing technique are adopted, and the prepared cast ball has the features of high wear resistance, high hardness, high toughness and good corrosion resistance; raw materials can be obtained easily; the common waste steel, ferrochromium, ferromanganese, ferromolybdenum and a recarburizer are used as production raw materials to realize recycling, and therefore, the energy sources are effectively saved.