How solar energetic particles impact on polar ozone content is a highlight of space science study. This article introduces the mechanism that solar energetic particle precipitations induce the depletion of ozone when these particles go into the atmosphere along the magnetic lines, the observations on typical ozone depletions caused by particle precipitations and the modeling results. We also discuss the applications of atmospheric chemistry coupling models on how ozone depletions caused by particle precipitations impact on climate change and the model simulations of extreme space weather events.%在极区，太阳能量粒子沉降对于臭氧的影响一直是国际空间科学界研究的热点。介绍了太阳能量粒子沿地球磁场磁力线进入极区后造成高纬地区臭氧含量损耗的机制，典型太阳能量粒子沉降事件造成臭氧损耗的观测研究以及国际上对于沉降粒子与臭氧损耗的模式模拟。讨论了目前应用大气化学耦合模式在分析太阳能量粒子沉降造成的臭氧损耗为气候变化带来的影响方面的工作，及一些极端空间天气事件的模拟结果。
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