基于修正后的流体静力理论和数学软件，对中高层大气100～500km高度范围内氧原子的垂直分布进行了快速有效的模拟，将模拟结果与MSISE－90模型提供的数据作了比较，二者数量级相等、仅数值有一定偏差。结果表明用该方法能有效地模拟地球任意地区100～500km高度范围内、任意时间氧原子的垂直分布。深入分析了实际大气中光化学反应、扩散输运、电离和重力波等对中性成分分布的影响，除重力波外，影响大气中性成分分布的其它相互作用最终趋于动态平衡，温度的垂直分布相对固定是这种平衡的综合体现。

The atomic oxygen perpendicular distribution of the middle and upper atmosphere (100～500 km) is simulated quickly and effectively based on the hydrostatics and mathematics software. The simulation results are compared with the data from MSISE-90 model, and they are coincident in order with certain difference in values. Results indicate that the method can simulate the atomic oxygen perpendicular distribution in 100～500 km range on each region and any time of the earth. The influence of actual atmosphere to this model is discussed fully including photochemistry reaction, diffusion, ionization, gravity wave, et al. Other component interactions go to dynamic balance finally except the gravity wave. Vertical distribution of temperature is stable comparatively, which is the result of the balance.