The prevalence of diabetes mellitus continues to rise and has become a global health challenge, including in Indonesia. The low rate of diabetes screening, particularly in rural areas, exacerbates the risk of delayed diagnosis and management of complications. Early detection through regular laboratory examinations is a crucial preventive step to reduce morbidity and mortality. This community service activity aimed to improve knowledge and encourage early detection of diabetes mellitus through laboratory examinations and health education. The intervention was conducted in Jorong Taratak Galundi, under the working area of Alahan Panjang Health Center, involving 25 participants. The methods included random blood glucose (RBG) testing using a glucometer, as well as health education sessions accompanied by pre-tests and post-tests to assess changes in knowledge. The results showed that all participants had RBG levels <200 mg/dl (100%), indicating normal conditions. However, the education sessions had a significant impact on increasing community knowledge, with post-test scores 22.4% higher on average compared to pre-test scores. This finding demonstrates that educational interventions can effectively enhance understanding of risk factors, symptoms, and prevention of diabetes. The activity confirmed that combining simple laboratory screening with health education is effective in raising community awareness of diabetes mellitus. For sustainability, similar programs should be conducted regularly with a broader reach, involving health workers and local cadres, to ensure rural communities have better access to preventive measures and early detection of diabetes.