With grass carp ridge pieces as experiment materials,the goal the total volatile basic nitrogen and quality change was measured to predict the growth of the Pseudomonas by Statistica software. The results showed that the content of TVBN increased with time while the sensory assessment was just the opposite and the modified Gompertz equation could be used to describe the growth dynamics of Pseudomonas. According to the square root model used to describe the relationship between temperature and the maximum specific growth rate and delay time,there was a good linear relationship. The storage quality can effectively be evaluated based on the index of total volatile basic nitrogen and sensory parameters. And the established models can accurately predict the growth of Pseudomonas in grass carp fillet.