As a typical high volatile bituminous coal, Shendong high calcium bituminous coal is mostly used as thermal power in power plants in the past, and only a small part is used for blast furnace injection. The influence of Shendong high calcium bituminous coal on the theoretical combustion temperature under different injection ratio conditions is calculated by establishing the calculation model of theoretical combustion temperature for blast furnace, and the industrial test on blast furnace injection of Shendong high calcium bituminous coal is carried out on this basis. The results show that after the injection of Shendong high calcium bituminous coal, the theoretical combustion temperature and gas volume before the blast furnace tuyere are gradually increased, and the increase of gas volume is mainly caused by the increase of H₂ amount in the gas composition. The results of industrial tests show that, after the injection of Shendong high calcium bituminous coal, the economic and technical indicators of the blast furnace have been significantly improved, which proves the feasibility of Shendong high calcium bituminous coal in blast furnace injection, and provides important support for improving the application value of Shendong high calcium bituminous coal in the field of ironmaking and promoting the optimal selection of blast furnace ironmaking injection coal.