Fecundity of Coregonus ussuriensis, collected during October and November 2013–2014 in the HeilongjiangRiver, China, was studied. Fish age was determined by scales, fork length, body weight, net body weight, and ovarianweight. The ages of the specimens were 5+–8+ years. Individual absolute fecundity was determined by the gravimetricmethod and was used to calculate relative fecundity per centimeter, relative fecundity per gram, gonadosomatic index,relative fatness, and other indices. Individual fish absolute fecundity was 1.161×104–5.921×104 eggs (mean, 3.027×104eggs). Relative fecundity per centimeter was 307.13–1119.37 eggs/cm (mean, 622.5 eggs/cm. Relative fecundity pergram was 19.81–56.98 eggs/g (mean, 34.62 eggs/g). The relationships between absolute fecundity and fork length, bodyweight, and age were regressed with a power function, linear equation, and a parabola. The relationships between relativefecundity per centimeter and fork length, body weight, and age were described by a power function and a powerfunction and linear equation. Relative fecundity per gram was not correlated with fork length, body weight, or age butwas correlated with gonadosomatic index and ovarian weight, using the power function as the best fit. A multiple regressionanalysis revealed that individual absolute fecundity was significantly correlated with ovarian weight and forklength, while relative fecundity per centimeter and relative fecundity per gram were significantly correlated with ovarianweight and gonadosomatic index. The correlation between individual fecundity and ovarian weight was higher thanthat with the gonadosomatic index based on the partial correlation coefficient.