对江苏省吴县、吴江等地区养殖的患“腐皮病”的中华鳖的病原进行了分离 ,从病鳖的肝脏分离得菌株 B- 1,用菌株B- 1进行人工感染 ,10 0 %的鳖患病 ,出现与自然病鳖相同的症状。对 B- 1株进行菌体形态特征、培养特性、生理生化反应及致病因子检测 ,证明该菌为致病性嗜水气单胞菌 The pathogens of “skin disease” soft-shelled turtle bred in Wu County, Wujiang and other areas of Jiangsu Province were isolated and the strain B-1 was isolated from the liver of the diseased turtle. Artificial infection was carried out with strain B-1. 100% Turtle sick, appear with the same symptoms of natural sick turtle. The morphological characteristics, culture characteristics, physiological and biochemical reactions and pathogenicity factors of strain B-1 were tested. The results showed that the strain was pathogenic Aeromonas hydrophila