Abstract: In order to deeply study the oxidation roasting mechanism and the impact of metallurgical properties of high-silica fluxed pellets, and to further optimize the ironmaking process, the paper prepared high-silica fluxed pellets in a laboratory setting, investigated suitable production process parameters for producing high-silica fluxed pellet ores, and conducted mineral phase analysis of the fluxed pellets using SEM-EDS. The results showed that a high-silica fluxed pellet with a bentonite ratio of 1.5% and a moisture content of 7.9% achieved a drop strength of up to 6.0 times and a compressive strength of up to 12.8 N; With a roasting schedule of preheating at 975 ℃ for 10 min, roasting at 1 215 ℃ for 10 min, and equalizing at 925 ℃ for 3 min, the roasting pellet strength reached 3 538 N, with a good reducibility of up to 75.8%, and a reduction expansion index of up to 26.24%. By increasing the roasting temperature and lowering the equalizing temperature, the compressive strength and metallurgical performance of the reduction expansion composite pellet ore can be improved. Ultimately, the suitable roasting schedule for generating a fluxed pellet with a basicity of 1.0 is: preheating at 975 °C for 10 min, roasting at 1 260 ℃ for 10 min, and equalizing at 940 ℃ for 3 min, improving the finished pellet's reduction expansion index to 10.69%.