Abstract: Viewing the industrial applications in future, the high-temperature dephosphorization of monazite concentrate with coking coal was investigated experimentally. The results showed that coking coal is one of the efficient reducing agents for the dephosphorization of monazite concentrate, to which the dephosphorizing temperature is mainly in the range from 1200 to 1400°C. When the monazite pellets, made by pressing monazite, coking coal and water together in mould, are roasted for 2h at 1400°C, the dephosphorizing rate of monazite comes up to 96.5%. The roasting temperature is the main influencing factor on the dephosphorization of monazite, while the influence of roasting time on the dephosphorization is unobvious if it is over 1h. The particle size of coking coal also has influence on the dephosphorization of monazite, and the size about 150μm is better. Fe and Fe2O3 have scarcely any influence on the dephosphorization of monazite.