Abstract: Coilia nasustaihuensis is the most abundant species in Dianshan Lake and plays an important role in the lake ecosystem. From July 2010 to August 2011, a total of 3107 samples of C. nasustaihuensis were collected from Dianshan Lake. Based on length data of these samples, ELEFAN I technique was employed to estimate growth and mortality parameters, and the Beverton-Holt dynamic model was used to evaluate the population dynamics trend for C. nasustaihuensis. Growth of this species was described using a von Bertalanffy model, and the estimated parameters were L_∞=35.70 cm, k=0.54, and t₀=-0.48 a. The turning point for body mass growth curve of the stock was situated at t=1.37 a. Natural mortality coefficient M was then estimated using Pauly’s empirical equation and found to be 0.872. Lengthconverted catch curves were used to estimate the total mortality coefficient Z, which was found to be 2.121. Accordingly, the fishing mortality coefficient (F) was equal to 1.249, and the current exploitation rate was 0.589, suggesting the stock was overexploited. According to the BevertonHolt dynamic model, the minimum capture size for C. nasustaihuensis should be 21.42 cm (age 1.22 years).