This study aimed to evaluate the effect of low temperatures (10°C, 5°C, 0°C, -5°C) on the survival of larvae and adults of the Oryzaephilussurinamensis, using different time periods (4 hours, 8 hours, 1 day, 7 days) and food types (wheat flour, barley flour, and corn flour). The results showed that food type had a clear effect on survival, with the highest survival rate of larvae recorded when feeding on corn flour, while adults survived best on barley flour. The decrease in temperature also had a marked effect on survival, as all larvae died at -5°C, whereas most larvae and adults remained viable at 10°C. The results demonstrate that the survival of Oryzaephilussurinamensis larvae and adults is influenced by the interacting factors of temperature, food type, and exposure period, providing a basis for better understanding the conditions for environmental control of this pest............................ Keyword: .............Oryzaephilus surinamensis, stored insects, grain beetles, stored grains