Abstract: Metisa plana (bagworm) is one of the major defoliator pest problems in the Malaysia oil palm plantation. Evolution occurs in the life cycle of this species make its presences are unpredictable and overlooked until it caused heavy defoliation to the infected plant. It could bring losses in the yield about 50% and take several years for the full recovery. Behavior and physiological adaptation such as temperature is one of the important abiotic factors in determines the life cycle, feeding behavior and survival of this species. Hence, it is significant to study the fundamental information on biology of this bagworm species, Metisa plana. This study will guide the growers to identify the exactly time to apply pesticides based on the climate changes by referring to the life cycle of bagworm, particularly, the stage that caused major damage to palm oil. The main objective of this study is to evaluate the effect of temperature on the development and survival of bagworm, Metisa plana. This species was observed and reared in a range of temperature between 20-36°C in the laboratory. This study was conducted from October 2017 until October 2018. Regression analysis was used to determine the relationship between temperature and the rate of life cycle duration of development. Result shows that bagworm completed its life cycle in a range of temperature between 20-36°C but did not survive in temperature under 16 and 40°C. The duration life cycle of this bagworm was significantly decreased with increased in the temperature. The optimum temperature recorded was between 32-36°C. Lowest mean of life cycle duration was recorded at 36°C. The highest percentage in bagworm’s survival was recorded at 32°C. Thus, bagworm have evolved in both physiological and behavior to survive in extreme condition. This information can act as a benchmark and guideline, especially for oil palm growers to plan better strategy in pest management to control this bagworm at the right time. Hence, growers can prevent this species of bagworm outbreak from occur.