The influence of magnetic field with the intensity of 0.07T on the hatching of the Hampshire breed chicken was investigated. The hatchability of the eggs that were influenced by magnetic field during the storage of the egg set (20-40 min) was increased in comparison with eggs that were not influenced by magnetic field (p < 0.05). In the eggs influenced by magnetic field during their incubation, the hatchability in experimental groups E1 and E2 decreased to 70.08 +/- 1.93% and 70.75 +/- 2.13%, respectively. The difference were significant (p < 0.001) in comparison with the control groups C1 and C2. The negative influence of magnetic field was manifested by lower weight of the hatched chickens in the experimental groups E1 (35.07 +/- 0.95 g) and E2 (35.94 +/- 0.97 g). The results were relevant (p < 0.05) in comparison with the control groups with the average weight of hatched chickens 41.83 +/- 1.15 g (C1) and 44.27 +/- 0.73 g (C2).