Abstract: Low cycle fatigue (LCF) behavior of a recrystallized zircaloy-4 plate were investigated using symmetric tension-compression test at room temperature and 400 ℃, respectively. The results indicate that alloy displays cyclic softening at the strain amplitude lower than 0. 8% and cyclic hardening at strain amplitude higher than 0. 8% at room temperature, and cyclic hardening at the total strain range at 400 ℃. The curves of fatigue lifetime vs. cyclic plastic strain range show that the alloy obeys Coffin-Manson relationship, and has better LCF property at room temperature than 400 ℃. Finally, SEM was used to investigate the fractural characterization.