The prevalence of smokers among traditional stone carving workers is high in Indonesia. As widely acknowledged, the long duration of smoking is known as a risk factor for diabetes. Smokers are often not aware of this effect, particularly in Indonesia. If left untreated, this will increase the prevalence of diabetes and its complications. Unfortunately, a study evaluating the long duration of smoking into diabetes biomarkers and neuropathy has not been explored. Therefore, the study aims to evaluate the smoking duration on HbA1c and the symptoms of neuropathy. The study used a descriptive design to achieve the study objective. A total of 56 participants were engaged with the specific inclusion and exclusion criteria. The regression analysis was used to predict whether smoking impacts the biomarker of diabetes. The finding of the study highlighted that smoking duration was not a predictor of the changes of diabetes biomarker and neuropathy (p > .05). Even though the result is not significant, the healthcare team must encourage to promote stopping smoking among the participants. Further study is required to develop an intervention to reduce smoking cessation in that population.