Abstract: The relationship between the variations of atmospheric ozone content and geomagnetic storms from 1966 to 1983 is studied in this paper.The results show that the variations of atmospheric ozone content during various types of geomagnetic storms are obvious,but their characteristic is different.The minimum of [O₃] decrease occurs on the sixth day after geomagnetic storms during G_C storms.The minimum of [O₃] decrease occurs on the third day or the fourth day during S₁ storms.The disturbance of [O₃] is the most obvious during S_A storms of S_c storms and the minimum of [O₃] decrease occurs on the first day;the minimum of [O₃] decrease occurs on the second day during S_B storms;the minimum of [O₃] decrease also occurs on the second day during S_D and S_d storms,but the minimum of [O₃] decrease occurs on zero day during S_b storm.The disturbance amplitudes of [O₃] are descending in order during S_A,S_B,S_D,S_d and S_b storms.But the increases of [O₃] are obvious on the day before each type of geomagnetic storms occurs.