The agglomeration process,as an important pretreatment step before laterite nickel ore is fed into the electric furnace,represents an effective means to reduce energy consumption in the electric furnace,enhance the recovery of valuable components, and reduce environmental burden. Pelletizing tests, preheating-roasting tests, thermal analysis, thermodynamic phase map calculations,as well as XRD,SEM-EDS characterization methods are mainly adopted, the pelletization behavior and oxidation-consolidation mechanisms of typical laterite nickel ores are systematically studied, aiming to obtain oxidation pellets of laterite nickel ore with appropriate strength. The results show that the main phases of oxidized pellets in the laterite nickel ore are Fe₂ O₃ ,CaMgSi₂ O₆ ,[(Mg,Fe) O·Fe₂ O₃ ],and Mg₂ SiO₄ ,among which Fe₂ O₃ ,[(Mg,Fe) O·Fe₂ O₃ ],(Mg₂ SiO₄ ) act as the framework,while CaMgSi₂ O₆ acts as the binder phase,thereby enhancing the consolidation properties of the pellets. In addition,increasing the roasting temperature and optimizing the basicity have a significant positive effect on the formation of the agglutinating phase in pellets. Under conditions of alkalinity of 0. 15,preheating temperature of 950 ℃ (for 15 min),and calcination temperature of 1 300 ℃ (for 15 min), laterite nickel ore oxide pellets with compressive strength of 1 983 N/ p can be obtained,meeting the requirements of subsequent processes.