Abstract
Corruption, as an international legal term, may include various crimes that have special links with each other, which are all called (corruption crimes). In this context, there is not specific crime that can be called corruption crime, but this term includes various ones. Accordingly, the UN convention in counter- corruption has put rules and investigative, judicial procedures for corruption fighting and to inflect punishment thereof. Although UN convention has required the member states to define corruption and the ones responsible for committing them as well to inflect punishment, but they asked the members to consult the legal rules that are included in the convention. The research includes the concept of corruption and means of prevention thereof.