The molt times and morphological features changes of the Liaohe population Chinese mitten crab (Eriocheir sinensis ) were further explored. Molting and growth of juveniles of the Liaohe population Chinese mitten crab was studied in outdoor net cages by recording carapace width and length, body weight, molting frequency, and observing the changes of morphological features. Male and female crabs molt 11 times in the whole experiment stage. The experiment selected 200 male and female crabs respectively, and lasted for 111 days in 2014. Male and female crabs molted 11 times in the whole experiment. In the end, 34 male crabs and 42 female crabs survived. The Special Growth Rates of male and female crabs were 0.0989±0.0173g/d and 0.0951±0.0171g/d respectively. The abdominal morphological changes of female crab were very obvious in molt process, changing from triangle to ovoid (Fig.5). Chela-foot sufficient of male crab grew significantly faster than that of female crab. A handful fluff and a small amount of fluff appeared on the inside and outside of the chela-foot sufficient venter respectively after the eleventh molt (Fig. 6 and Fig. 7). The results show that molt times of Liaohe population Chinese mitten crab is likely to be 20 times and the time interval is changed by carapace width or carapace length index (Fig. 8) in whole life, in addition, some interesting phenomenon were observed.