In 2018，Iran’s economy went into recession under the comprehensive sanctions of the Trump Administration. Iran’s currency，the Rial，has depreciated sharply，oil exports have been facing great difficulties，and international capital has left from Iran. Affected by the above factors，Iran’s economy has gradually tend to shrink. Inflation has resumed its vicious rise. Domestic manufacturing enterprises faced serious difficulties due to the loss of external technology and capital support. Unemployment rate began to rise with a high education unemployment group. Foreign trade began to shrink. To counter U.S. economic sanctions，the Iranian government has restricted imports and forced the repatriation of foreign exchange，strengthened ties with the Russian-dominated Eurasian Economic Union，tried to establish an independent payment system that can bypass the dollar with the European Union，and tried to establish currency swaps with other countries. Whether the Iranian economy can get out of the crisis in the future depends on the joint efforts of the international community and Iran itself.