Building of a healthy society in Sri Lanka, which is free from illicit liquor and narcotics drugs.
The mission of the Department of Excise has been broadly identified as the "efficient and effective administration of the Liquor and the Tobacco industry in Sri Lanka through the collection of revenue and prevention of illicit manufacture and sale of such products, for development and welfare of the society, and the enforcement of the Poisons, Opium and Dangerous Drugs Ordinance for the social protection of Sri Lanka."
- The collection and protection of revenue from Liquor and Tobacco.
- The enforcement of the Excise Ordinance and the Tobacco Tax Act.
- The enforcement of the Poisons, Opium and Dangerous Drugs Ordinance.