Abstract: The recrystallization behavior of copper-containing ferrite antibacterial stainless steel was studied by optical microscope, microhardness tester and scanning electron microscope. The results show that the longer the recrystallization holding time, the lower the recrystallization temperature.The recrystallization temperature of the experimental steel is 833 ℃, 773 ℃and 735 ℃, respectively under the conditions of holding for 3, 5 and 7 min.The microstructure and hardness evolution of experimental steel can be divided into three stages. In the first stage, the experimental steel is in the recovery process, the microstructure is fibrous, and the hardness remains basically unchanged. In the second stage, the experimental steel is in the recrystallization process, and the hardness drops rapidly. In the third stage, the recrystallization process of the experimental steel is basically completed and reaches a completely softened state, and the hardness value decreases slowly and tends to be stable. The relationship between the holding time t and the recrystallization temperature T is established: lnt = 9682.3/T-3.56224.