A serious stifling poison accident .occoured in one privatly owned manganese ore mine in Xiangtan, was described. After analysing causes of this accident,the auther suggests some countermeasures.

• 叙述了湘潭某群采锰矿重大中毒窒息事故的经过,分析了产生的原因,并总结了经验教训,提出了预防措施。