The explosive initiator used for aircraft is a product with high reliability and long life.In order to improve the storage life assessment precision of small sample size explosive initiator, through the analysis of the influence factors on storage life, an accelerated storage life model describing the relation of storage life and storage temperature for explosive initiator was established and a method suited for testing and evaluating the accelerated storage life of explosive initiator used for aircraft was proposed via a combination of sensitivity test and accelerated test.Based on the sensitivity test data of explosive initiator after acceleration and generalized linear model, the maximum likelihood estimations of the sensitivity distribution parameters were given.Then, the storage life assessment of explosive initiator used for aircraft was performed according to approximate normal characteristics of parameter estimations.The method was applied to one aircraft explosive initiator.The results show that the effective evaluation of explosive initiator required to store more than 15 years can be carried out via test data obtained by a sample size of about 150 and a period of about 40 days.