探讨不同时间煤矿工伤事故的发生规律、特征及其影响因素。应用回顾性调查的方法 ,研究分析某矿业集团公司 1 2个国有重点煤矿职工在工作场所劳动过程中工伤死亡发生时间的分布规律。结果显示 ,1 95 6～ 1 990年 35年间因工伤事故死亡 989人 ;工伤死亡率由 1 4 1 4 /1 0 4下降至 2 80 /1 0 4,不同时间的百万吨死亡率、工伤死亡率、死亡构成有明显不同。 35年间 1 2个国有重点煤矿所发生的工伤死亡情况总的呈逐年下降趋势 ,说明煤矿安全生产与国家和社会环境、经济条件、企业管理的变化有密切关系 Explore the occurrence law, characteristic and influence factor of coal mine accident at different time. A retrospective survey was conducted to study the distribution of work-related deaths among workers in 12 state-owned key coal mines in a mining group during the work place. The results showed that 989 people died of work-related accidents in the 35 years from 1965 to 1949, the death rate of work-related injuries dropped from 1141/104 to 280/104, the death rate at one million tons per day, Mortality, death constitute a significant difference. The death toll of work-related injuries in 12 state-owned key coal mines dropped from year to year in 35 years, indicating that there is a close relationship between coal mine safety production and changes in national and social environment, economic conditions and business management