目的对四川省检出的三个新型钩端螺旋体（下称钩体）７９－５７、８１－５２２及８２－２２４株进行分类鉴定。方法采用凝集试验及凝集素交叉吸收试验法反复鉴定。结果确定７９－５７株为犬群新型钩体，命名为邛崃型，８１－５２２及８２－２２４株为黄疸出血群新型钩体，分别命名为仁寿型和凉山型。结论这些新型钩体菌株的发现为国际国内参考菌株系列提供了新的血清型，在钩体分类学发展及血清学鉴定中具有重要科学意义。 Objective To classify and identify three new types of Leptospira (hereinafter referred to as leptospira) 79-57, 81-522 and 82-224 strains detected in Sichuan Province. Methods Agglutination test and cross-absorption test of lectin repeated identification. The results showed that 79-57 strains were new type of leptospira in dog population, named 邛 崃 type, and 81-522 and 82-224 strains were new leptospira species of jaundice hemorrhage. They were named Renshou type and Liangshan type respectively. Conclusion The discovery of these new strains of leptospira has provided a new serotype for domestic and international reference strains and has important scientific significance in the development of taxonomic taxonomy and serological identification.