The kinetics of the non-isothermal carbothermal reduction of zinc ferrite and its reduction reaction mechanism are studied. The phase transition process of the zinc ferrite carbothermal reduction reaction was analyzed via the XRD results of the reduced zinc ferrite. FeO0.85·xZnO was found at 950°C, when Fe3+ was reduced to Fe2+. The relationship between conversion and conversion rate of the zinc ferrite carbothermal reduction process is discussed. The reduction process can be divided into three stages, and the conversion of the second stage changes greatly (0.085~0.813). Finally, the kinetics of the second stage of the carbothermic reduction of zinc ferrite at different heating rates was evaluated through the iso-conversional method and the master curve fitting method. The average activation energy of the second stage is 362.16 kJ/mol. The secondary chemical reaction is the main rate-controlling link in the second stage, and the kinetics equation of the second stage is determined.