Abstract: In order to obtain the preservation technology of black soldier fly larvae, the methods of purification,killing and sterilization were studied, and the shelf life prediction was carried out. The results showed that the processing method of black soldier fly larvae was as follows: the ratio of insect to water 1 ∶4, larvae purification time 48 hours, and the water was changed once every 24 hours, then hot water treatment time: 70 ℃/10 min,80 ℃/5 min or 90 ℃/2 min. The larvae could be killed and had a good appearance. Sterilization treatment results showed that heat sterilization had the best effect, sterilization rate was up to 100% if sterilization at 100 ℃ for 10 min. Based on Q₁₀ prediction model constructed by ASLT, the shelf life of the larvae as food or as feed at 4 ℃was 15.6 days or 97 days respectively.