According to theory of international economics, mutual and multilateral commercial and economical relations are mainly a win-win game so restricting them especially through sanctions could harm both parties of a sanction. After World War II almost all sanctions, except for Yugoslavia, have been imposed against South. Since its constitution, IR Iran has been exposed to the sanctions imposed by USA and its allies but from 2005, uranium enrichment has become an excuse for intensifying sanctions. The main objective of the imposed sanctions is fundamental change of Iran’s nuclear policies and approaches. Now, Iran is suffering from most unprecedented sanctions in the history so they could be referred to as economic wars. Using various tools, USA has been able to persuade its allies and many other countries to impose economic pressure against Iran. All West imposed sanctions against Iran could be categorized in 5 groups: technologic, investment and military equipment sanctions, restricting financial transaction, the Central Bank sanctions, selling gas and oil sanctions, prohibiting precious and gold trade and finally blocking the funds. Even though different sectors of Iran’s economy have been affected by the sanctions, but economic authorities of the country, adopting proper policies have been trying to manage the effects of these sanctions.