Introduction: Addiction is a complex challenge in Iran society. This phenomena cause problems for narcotic consumers and society with regard to prevalence of addiction and urbanization.

  Method: Type of research is applied and used correlation analysis and comparied analysis. The methods of data collection are: urbanization data, data about narcotic material and situation of addiction in Iran. The aims of this paper are: study of addiction and narcotic material in urban system, the effect of urbanization on change of narcotic consumers and addictions in Iran.

  Findings: The results show that: Kerman, Khorasan Razavi and Fars are at the highest level in detection of narcotic material. And Qum, Tehran and Isfahan provinc are at the highest level in urbanization rank. These provinces have a high ranking in detection of narcotic material.