Abstract: In order to construct the kinetic model of ferrite recrystallization and the recrystallization grain size model during the continuous annealing process of the third generation of advanced high-strength steel, quenching-partitioning（Q＆P）steel, different annealing experiments were carried out. The influence of annealing temperature and holding time on the recrystallization volume fraction and grain size was investigated. The results show that the grain size and fraction of recrystallization continuously increases with increase of annealing temperature and holding time. By determining the recrystallization kinetic parameters from experimental results, the models are employed to predict the recrystallization volume fraction and recrystallization grain size during actual continuous annealing process, achieving a model accuracy of 92%. This provides a theoretical basis for predicting recrystallization volume fraction and grain size during continuous annealing process.