Rationale and Background: : The prevalence of overweight and obesity among children and adolescents has increased worldwide and has reached alarming proportions. Currently, sugar-sweetened beverages are the primary source of added sugar in the diet of children and adolescents. Objectives: : This study aimed to examine the association of the consumption of sugar-sweetened beverages and added sugars, with total and abdominal obesity among secondary school. Methodology: : Data was collected with a self-administered questionnaire. Intake of sugar-sweetened beverages including carbonated drinks and synthetic fruit juices were measured using a validated food frequency questionnaire and 24-hour food consumption recall. The association between body mass indexes, waist circumference, and body adiposity index in each quartile category of sugar-sweetened beverages consumption was determined using multiple logistic regression models. Results: : Our findings showed that among the subjects, 35.3% were underweight, 6.2% were overweight, and 14.3% were obese. 67.2% of school adolescents have high knowledge of intake of sugar-sweetened beverages and abdominal obesity. Sweetened beverages and crispy flour snacks are the two most commonly consumed foods by adolescent students. Of the sugary beverages, 35.3% of teenagers drank soft drinks four to six times a month, followed by iced green tea/coffee (26.6%) and bubble milk tea (19.3%). Flavored milk (16.9%) was the most popular type of milk and milk-based product consumed, followed by fresh/plain (16.2%) and soy milk (11.2%). Crunchy seasoning ranked first among crispy flour snacks (21.7%), then Mama noodles (18.3%), and cream-filled cookies (8.6%). Conclusion: According to this study, overweight and obesity are highly prevalent among Laotian school-age adolescents. Daily soft drink consumption was widespread, highlighting the need for targeted interventions. Our results align with evidence from prospective cohort studies and randomized trials, which indicate that reducing soft drink consumption should be a key strategy in the fight against the pandemic of overweight and obesity among teenagers.