Following the victory of the Islamic Revolution, England has repeatedly been a tangible instance of creating political crises in Iran. Dangers such as the export of the Islamic Revolution, opposition to the domination system, the consolidation of Iran as the region's primary power, and other factors caused Britain, due to its influence in Iran, to take steps toward weakening and analyzing the power of the Islamic Republic of Iran; the country of England is considered one of the primary adversaries of the Islamic Republic of Iran system. The research question is: What is the role of England in creating the political crisis after the 2009 presidential election in Iran? Investigations show that England's relations with Iran after the victory of the Islamic Revolution of Iran have had many ups and downs, because Britain's extensive support for the Ba'athist regime of Iraq during the imposed war, the hidden role of this country's intelligence service in the attack on the Iranian embassy, support for domestic ethnic-oriented forces and opponents of the system such as the Mojahedin-e Khalq organization, terrorist groups such as PJAK, Komala, Democrat, Jundallah, ISIS, etc., encouraging and inciting the Arabs of the Persian Gulf littoral against Iran and imposing extensive economic sanctions against our country, direct and indirect interference in various elections and riots after the presidential election, and creating multiple political crises in Iran, have been the effective role of England in the political unrest leading to the 2009 presidential election and, by attacking the legitimacy of the system, it has attempted to create a legitimacy crisis and a colored revolution in Iran. The present research has examined the subject using a descriptive-analytical method and reviewing events.