Eleven morphological characters of 19 Paramisgurnus dabryanus populations from 7 water systems were analyzed by using GLM linear regression analysis one-way ANOVA discriminant analysisprincipal component analysis and cluster analysis. The GLM linear regression analysis showed that the anal-caudal fin distance (DAC) /body length (LB) was negatively correlated with latitude (r=-0.782)and the caudal peduncle length (LCP)/body length (LB) was positively correlated with latitude (r=0.834). The results of one-way ANOVA indicated that the morphological differences were not significant between the Songhua River and the Liaohe River populations; Songliao population was characterized by a shorter total lengtha longer caudal peduncle length and a shorter anal-caudal fin distance. Discriminant analysis showed that the comprehensive correct diserimi-nation rate was 65.9% and the accuracy of the discrimination between the populations from Songliao and the southern was 100%. The principal component analysis result indicated that 62.9% of the variance was explained by three major three major components. The first and most important component explained 38.1% of the original variation and the parameters with strong positive discriminating power (load value>0.4) were body height (HB) body width (WB) caudal peduncle height (HCP)caudal peduncle height (LCP). The result of clustering analysis revealed two distinct clusters:the north and the south populations. The present study showed that there was significant difference in the morphological characteristics of P. dabryanus between the southern and northern water system in China. According to the Mayr’s 75% rule most morphology differences of P. dabryanusbetween the Songliao and some southern water systems may characterize subspecies. The present study provides morphological basis for the taxonomic status of the P. dabryanus population in China. It also provides useful information for the population assessment management and conservation of P. dabryanus.