目的调查和分析本次食物中毒原因,总结经验教训。方法进行流行病学调查,根据患者临床表现进行分析,对中毒人员所提供的线索采集了样品,进行实验室检测。结果 7份样品中4份检测出亚硝酸盐,其中有一个样品亚硝酸盐含量为460mg/kg。结论提高餐饮行业人员食品安全意识,严格按照国家标准使用食品添加剂,确保食品安全。 Objective To investigate and analyze the causes of food poisoning and to sum up experiences and lessons. Methods Epidemiological survey, according to the clinical manifestations of patients were analyzed, the clues provided by the poisoned persons collected samples for laboratory testing. Results Four of the seven samples detected nitrite, one of which contained a sample of nitrite at 460 mg / kg. Conclusion Improve the awareness of food safety personnel in the catering industry and use food additives in strict accordance with national standards to ensure food safety.