Thirty pairs of mating Rana dybowskii were collected from Changbaishan Mount of Jilin Province in April, 2012 to study sexual dimorphism and morphological correlates of mate choice. Measurements taken for each individual included snout-urostyle length (SUL), head length (HL), head width (HW), fore-limb length (FLL) and hind-limb length (HLL). All morphological variables measured were positively correlated with SUL in both sexes. The rates at which FLL and HLL increased with SUL did not differ between the sexes, whereas the rates at which HL and HW increased with SUL differed between the sexes. The mean SUL was greater in females than in males, FLL was greater in males than in females after accounting for variation in SUL, and other morphological traits did not differ between the sexes. Our data also showed that there were no significant correlation in most examined morphological traits of paired female and male except HLL. Therefore, the formation of sexual dimorphism in R.dybowskii were not significantly correlates with morphological traits of mate choice.