Resumo. ABSTRACT Introduction: Diabesity is characterized as a simultaneous condition of type 02 diabetes and obesity. Among the aspects that influence the development of diabetes, the time in sedentary behavior and the time of physical activity are important risk factors. Objectives: To estimate cut-off points for time spent in sedentary behavior and physical activity as a discriminator of the presence of diabesity and to evaluate the predictive ability of WC and PA to identify this condition in quilombola adults. Methodology: this is a cross-sectional study with a sample composed of 332 adults (age ≥ 50 years), participants in the study of the Epidemiological Profile of Quilombolas from Bahia living in the micro-region of Guanambi, Brazil. The data were obtained by means of interviews and anthropometric evaluation. Sociodemographic and lifestyle information (physical activity and sedentary behavior) were included. To analyze the cut-off point of Sedentary Behavior as a predictor of diabesity, the Receiver Operating Characteristic (ROC) curve was used. Results: Time in sedentary behavior >120 min/day and time in physical activity <240 min/week were the best cut-off points for discriminating diabesity in quilombola, with area under the ROC curve of 0.62, 95% CI (0.56-0.67) and 0.62 (95% CI: 0.55-0.67), respectively. Conclusions: The results showed that time in sedentary behavior and time in physical activity showed a good ability to discriminate the presence of diabesity among quilombola adults.