In order to predict the shelf life of flax seed kernel paste, taking the flax seed kernel collected form market as raw material, peroxide value and acid value as physicochemical indexes, total number of bacterial colony, coli group and pathogenic bacteria as hygienic indicators, the test was carried out by classical constant temperature accelerated test at temperatures of 36℃ and 46℃. Based on the shelf life test ALST: θ（ST1）=θ（ST2）×Q10（T2-T1）, the shelf life of the paste at room temperature (25℃)was calculated. The results showed that the shelf life of the flax seed paste was 317 days with Q10=1.227 under 25℃, packed with boiling-resistant plastic package. The method of rapid determination of the shelf life of the sterilized flax seed paste was established, which has reference value for shortening the development periods of the relevant products.