As the proportion of the population with obesity continues to rise, the prevalence of metabolic syndrome is increasing in both children. Children with metabolic syndrome have an increased risk of metabolic syndrome as adults, and possibly an increased risk of type 2 diabetes mellitus and cardiovascular disease . A meta-analysis of large population stud demonstrate that MS causes a 27-37 % increase in the risk of total mortality and 65-93 % risk of cardiovascular disease. Metabolic syndrome includes a group of severe disorders and is attesting when are present at least 3 of the following: hypertension, abdominal obesity, insulin resistance and dyslipidemia. At this complex can be added: proinflammatory and prothrombotic state, non-alcoholic hepatic steatosis and sleep apnea. Waist-to-height ratio and waist circumference have been proposed as predictors of metabolic syndrome in children. The purpose. To determine the predictors (waist-to-height ratio and waist circumference) and prevalence of metabolic syndrome în obese children (10-18 years). We studied 145 eligible participants from the Cardiology Clinic. Were analyzed anamnestic data, demogra anthropometric, laboratory and instrumental data. The diagnosis of metabolic syndrome was established according to the criteria of the International Federation of Diabetes (IDF, 2007). The ethics committee of the scientific research approved the study protocol, the participants signed informed consent for participation. We studied data from 145 participants (average age 14.7 ± 2.3 years). According to the IDF criteria, metabolic syndrome was confirmed in 28%. Waist circumference ≥90th percentile for sex and age according to national reference curves to all children included in the research, and waist-to-height ratio in 99% of cases. A waist-to-height ratio value of ≥0.50 indicated a 1.3 fold increased risk of metabolic syndrome compared with normal waist-to-height ratio value. These parameters (waist-to-height ratio and waist circumference) is a simple and practical tool for use in predicting metabolic syndrome in children. These findings justify the need to incorporate waist-to-height ratio and waist circumference determinations into daily clinical practice to predict the metabolic syndrome. These children have high cardiometabolic risk and request a therapeutic approach and intervention as early as possible and maximum effective, aiming prevention of installing of irreversible complications in adulthood.