本文应用多元逐步回归分析方法对我国东北地区卫氏并殖吸虫的两种类型(二倍体型和三倍体型)的囊蚴、虫卵和成虫的判别作用进行了分析。建立了鉴别卫氏并殖吸虫两种类型囊蚴和虫卵的两个判别函数及临界值。对东北五个地区及江西、安徽的独立样本考核结果提示其具有普遍的实用价值. In this paper, the discriminant function of metacercariae, eggs and adults of two types of Paragonimus westermani (diploid and triploid) in northeastern China was analyzed by multivariate stepwise regression analysis. Two discriminant functions and critical values ​​for the identification of Paragonimus westermani two types of metacercariae and eggs were established. The results of independent sample examination in five regions in Northeast China, Jiangxi and Anhui suggest that it has universal practical value.