During COVID-19 pandemic era, the diets and physical activities of adolescents tended to change. The changes of the diets and physical activities were due to limited activities during the COVID-19 pandemic. The purpose of this study was to determine the relationship between diet and physical activities with adolescents' nutritional status in COVID-19 pandemic era. This study was conducted at the Laboratory High School, State University of Malang. This study was a analytical correlational study with a cross sectional design approach. The samples of this study were 171 students. The sampling technique was a purposive sampling. The measurement of the diets used the Food Frequency Questionnaire (FFQ) to determine the kind of food that was often consumed by respondents and 24-h Food Recall was carried out to represent weekday and weekend food intake. The measurement of the physical activities used International Physical Activity Questionnaire (IPAQ) short version. The measurement of adolescents' nutritional status used IMT/U and percent fat. The results of Spearman's Rho p-value = 0,000, that there is a significant correlation between diet (energy, carbohydrates, protein, fat) intake and physical activities with adolescents nutritional status (IMT/U and percent fat) during the COVID-19 pandemic at the