Introduction: Substance misuse is the term used to describe drug use that is irregular or ongoing yet unrelated to or inconsistent with accepted medical practice. A maladaptive pattern of substance use causes clinically significant distress, which can be seen in the failure to fulfill significant obligations at home, school, or work, the use of drugs in physically hazardous situations, recurrent legal problems associated with the use of drugs, or the continued use of drugs in the face of persistent or frequent social or interpersonal problems that the drugs' effects only serve to exacerbate. Objectives: The objective of this study is to assess the knowledge, attitudes, and practices of the productive age group about social drug use in Lidata Sub City, Addis Abeba, Ethiopia. Methodology: From 09 June to 09 July 2023, a cross-sectional study was conducted in the Lidata sub-city to assess the knowledge, attitudes, and usage of social substances among the productive age groups. Result: 156 (66%) of the 237 study participants who responded were men, and 81 (34%), were women. The median age of the participants, who ranged in age from 17 to 60, was 36.5. Thirty-eight percent of the productive age group was aware that khat use had negative effects, 39 were unaware, and 168 believed that there were none. Similar to this, 153 (65%) of them are certain that alcohol use has a bad effect on health, causes bad economic repercussions, and increases crime, while 65 (27%) are unsure and 19 (8%) claim it has no bad effect. 16.45%, or 39 respondents, admitted they had ever smoked in their lives. Among smokers, 12 (or 30.76%) of them smoked between three and five cigarettes per day, eight (20.5%) smoked between six and ten cigarettes per day, six (13.38%) smoked between eleven and twenty cigarettes per day, nine (or 23.07%) smoked two cigarettes per day, and 10.25% smoked one cigarette per day. Conclusion: The working-age population in the Lidata sub-city showed low awareness of, acceptance of, and use of social drugs. The age groups with short and frequent trains to community awareness-raising conferences, workshops, and gatherings are the KAP productive age groups in terms of social drug usage.