Due to the increasing effects of anthropic activities and the climate change, there appears to be a rapid shift in the dominant species of fish in the Yellow Sea. Since the 1980s, Liparis tanakae has become the dominant species and now plays an important role in the dynamics of fishery resources in the Yellow Sea. In order to clarify the recruitment and the dynamics of L. tanakae population, we analyzed the inter-annual variations in the absolute fecundity, relative fecundity, egg diameter and gonadosomatic index of L. tanakae, based on the bottom trawl data collected by R/V "Beidou" in the central and southern Yellow Sea during 1985-1986 and 2011-2012. We found that the distribution of L. tanakae's egg diameter changed from multi-peak in 1985-1986 to double-peak in 2011-2012, with an increase in the average value from (1.10.2) mm to (1.20.1) mm. The gonadosomatic index and condition factors measured in Jan, 2011 were lower than those measured in Jan, 1986, and there were no significant differences (P>0.05) between these two parameters and the absolute fecundity. The absolute fecundity (F) of L. tanakae was 9407-84209 eggs (376773625 eggs in average) found in 1985-1986, and the relative fecundity estimated with the body length (F_L) and the body weight (F_W) was 446-1981 eggs/cm and 18-157 eggs/g, respectively. All the values of the fecundity measured in 2011-2012 were lower than those measured in 1985-1986: the absolute fecundity was 2984-81614 eggs (247282822 eggs in average), F_L was 114-1690 eggs/cm, and F_W was 15-106 eggs/g. No significant differences (P>0.05) were detected in fecundity parameters between the two periods according to the covariance analysis. There was a positive power index correlation between F and the body length, and a positive linear correlation between F and the body weight. There was also a positive linear correlation between F_L and the body length. In contrast, a negative linear correlation was found between F_W and the body length. However, there was no significant correlation between F_L, F_W and the body weight. These results suggested that the L. tanakae population was relatively stable under the influence of multi-stressors in the Yellow Sea.