本文对医院污泥长期自然堆放条件下其致病菌、指示菌、蛔虫卵的消亡规律及其影响因素进行了现场试验和模拟验证。研究结果表明污泥内粪大肠菌群及沙门氏菌属菌的死亡符合一级反应动力学模式;粪大肠菌群自然堆放到第2～3个月时达到排放标准,沙门氏菌则需4～5个月;蛔虫卵经10个月贮放后死亡率可达90％;温度对细菌死亡率影响较大。 In this paper, on the condition of long-term natural deposition of hospital sludge, the pathogenic bacteria, indicator bacteria and Ascaris eggs were killed and their influencing factors were tested in field and simulated. The results showed that the death of fecal coliform and Salmonella in sludge accorded with the first-order kinetics model. The fecal coliform naturally discharged to the second to third months and Salmonella required 4-5 months ; Roundworm eggs after 10 months of storage mortality up to 90%; temperature on bacterial mortality greater impact.