With the increasing pressure of carbon emission reduction in the iron and steel industry, the application of hydrogen metallurgy technology can effectively reduce carbon emissions, among them, the gas-based shaft furnace production process of hydrogen metallurgy has received extensive attention at home and abroad. The high metallization rate DRI produced by the gas-based shaft furnace can be fed into electric furnace to produce high-quality steel, while it can also produce pellets with a metallization rate of 50% as raw materials for blast furnace iron-making. Based on the typical atmosphere and temperature conditions of hydrogen metallurgy, and comprehensively considering its reduction behavior, the suitable process parameters for producing pellets with different metallization rates are researched. The results show that, with the increase of temperature and hydrogen ratio in the reducing gas, the reduction rate increases significantly, the strength decreases after reduction, and the reduction swelling index increases. Under pure hydrogen and hydrogen-rich atmospheres ( HYL atmosphere is recommended), 92% metallization rate DRI is suitable for production at a reduction temperature of 1 000 ℃. As for pure hydrogen atmosphere at a reduction temperature of 950 ℃ and hydrogen-rich atmosphere(HYL atmosphere is recommended)at a reduction temperature of 1 000 ℃, it is suitable to prepare 50% metallization rate pellets.