Dynamic recrystallization (DRX) affects the microstructure, texture evolution and final mechanical properties of zirconium alloys during hot rolling. In this study, hot compression tests are performed at temperatures between 550 ℃and 700℃ with strain rates between 0.01s_^-1 and 10s_^-1 to investigate dynamic recrystallization behavior of Zr-1.0Sn-1.0Nb-0.1Fe. Critical strains for initiation of dynamic recrystallization and peak strains are identified through the analysis of work hardening rate from measured stress-strain results. Dynamic recrystallization is identified by the softening in the flow stress during plastic deformation and quantified as the difference between a calculated dynamic recovery curve and the measured stress-strain curve. Dynamic recrystallization is modeled using calculated critical strain, peak strain, Zener-Hollomon (Z) parameter, and volume fraction of dynamic recrystallization. Finally, the dynamic recrystallization model of Zr-1.0Sn-1.0Nb-0.1Fe was verified by flow stress curves and volume fraction of dynamic recrystallization.