Abstract: In order to extend the shelf life of chicken breast, the mannan complex preservation solution was used for the preservation of chicken breast.The p H value, microbe quantity of chicken breast were assayed as reference indexes, the total volatile basic nitrogen ( TVB-N) value was regarded as an evaluation index and a mathematical model was built between TVB-N and different preservations to predict the shelf life during storage.The results showed that: the TVB-N value of mannan coating group accorded with exponential growth model and the preservation effect was significant ( p < 0.05) . TVB-N value of the mannan coating group effect of the mannan coating was significant ( p < 0.05) .The results of mathematical model showed that the mannose coating could prolong the freshness of chicken breast until 18 d, which was close to the model predictive value and indicated that the model could predict the shelf-life of chicken breasts reliably.