【Background】In China, apple snail was listed as a priority for exotic invasive species because of its low trophic level, strong resistance for dry and drugs, high fecundity, and few natural predators. Since its introduction and spread, apple snail has brought severe damage to crops. This snail has high shell color plasticity which seems controlled by genetic and environmental factors. Surveys showed that black snails were dominant in Guangdong Province compared with yellow colored snails. Apple snails appeared to mate with snails of different shell colors. Shell color may affect mating selection but rate of fertility was not significant between the snails of different colors. Few reports have been made on the other morphological traits of the two types of snails. 【Method】The relationship between morphological characteristics and body mass of apple snail with different shell colors, was analyzed through correlation coefficients, path analysis and determination coefficients. This analysis was completed for populations in seven regions of the province of Guangdong. 【Result】The results showed that body mass and shell height had significant larger variation coefficients for the yellow snail than the black snail. Mouth width also had significant effect on body mass for yellow shell apple snails, while mouth width and whorl height were more associated to body mass in black shell snails. 【Conclusion and significance】 Apple snails with different shell colors significantly differed in their morphological traits. For using shell color as signature in gene study, we can monitor and control of the apple snails, this study provides a baseline reference in Guangdong Province by using different shell color.