Aim: This study was carried out to investigate the application of different magnetic intensities on the sperm freezing medium.Material and methods: In this experiment, the magnetic field induction of 0, 2000, 4000 and 6000 Gauss was used to determine the optimum intensity during the freeze-thawing process. Semen samples were collected from 10 pieces of 24-week-old Ross 308 broiler chickens using abdominal massage technique. In this study, the experimental treatments were: 1) ordinary diluent, 2) G2000-intensive magnetic diluent, 3) G4000-intensive magnetic diluent, and G6000-intensive magnetic diluent. The used diluent in this study was the Lake diluent. This diluent was mixed with 1% soy lecithin and 5% glycerol, and then on the basis of the experimental treatments, they encountered different magnetic intensities. Diluted sperm was frozen based on each treatment, after cooling in a 0.25 ml straws. After freezing some sperm parameters such as total and progressive motilities, morphology, membrane integrity, MDA production, apoptosis status and mitochondrial activity were evaluated.Results: Results showed that different magnetic fields had no significant effect on total and progressive mobilities, membrane integrity, morphology, lipid peroxidation, acrosome integrity and apoptosis mechanisms of rooster sperm. Just mitochondrial membrane potential in the control group was higher than other groups (60.5%, P<0.05).Conclusion: It seems that exposure of rooster semen cryopreservation media with magnetic field cannot be efficient for quality of sperm after thawing.