The invention discloses a technology for processing vanadium extraction semi-steel. The technology includes technological processes of (1), feeding pig iron; (2), carrying out iron charging; (3), carrying out blowing; (4), adding coolants; (5), terminating blowing. Molten pig iron added during production according to the technology comprises chemical components including, by weight, 4%-5% of C, 0.08%-0.3% of Si, 0.2%-0.5% of Mn, 0.25%-0.3% of V, less then or equal to 0.25% of P, less than or equal to 0.07% of S and 93.58%-95.47% of Fe. The technology has the advantages that the original double-slag vanadium extraction smelting is replaced with semi-steel vanadium extraction, the yield of double-slag vanadium slag is approximately 30 Kg/t steel, the comprehensive grade is higher than 13%, and good benefits can be created for companies; slag splashing effects of semi-steel smelting converters can be obviously improved after semi-steel vanadium extraction is adopted, the fettling frequencies can be lowered, the operation rate of the converters can be increased, accordingly, the production efficiency can be improved, and the enterprise benefits can be increased.