In order to study the aging migration process and influencing factors of deterred DB propellants， a theoretical model on the deterrent distribution and the change of combustion performance caused by aging migration was established based on the normal distribution characteristics of deterrent and the inference of Fickian second diffusion law. Six kinds of propellants with different contents of nitroglycerin（NG） and dibutyl phthalate（DBP） were treated by accelerated aging experiments at different temperatures and times， and the combustion performances of propellants were tested by closed bomb vessel. The kinetic process and thermodynamic influence of aging migration for propellants were analyzed. Theoretical analysis shows that the integral value growth rate of the dynamic vivacity for deterred spherical propellants presents a good linear growth relationship with aging time. The results of the closed bomb vessel show that the percentage increase of the maximum dynamic activity for the six propellants after accelerated aging also gives a good linear relationship with aging time， which is consistent with the theoretical research results. The established thermodynamic equation of aging migration for deterred propellants is basically consistent with the experimental results， and the logarithm of migration driving factor and the reciprocal of temperature present an obvious linear negative correlation. When the total content of NG and DBP in propellants is greater than 15%， the migration driving factor is more susceptible to the influence of temperature， leading to migration invalidation. When the total content of NG and DBP is less than 15%， the invalidation rate caused by deterrent migration is relatively slow， which is more conducive to the use and shooting safety after the storage of propellants.