In this research, we evaluated earnings persistence based on the accounting standards. Therefore, two time intervals were considered, a 5-year period (1996-2000) before the execution of accounting standards and a 5-year period (2001-2005) after the execution of accounting standards. To extract the necessary data, audited financial statements and existing software packages such as DENA SAHM and comprehensive stock exchange software packages were used. Research results show that accounting standards can affect earnings persistence. [Hassan Zohdi, Abdolghafour Mohammadzadeh, Mahdi Toujgi Zabol, Alireza Dehvari, Aminollah Tavassoli. The impact of Accounting Standards on Earnings Persistence: Evidence from Iran. Life Sci J 2012;9(4):904-909] (ISSN:1097-8135). http://www.lifesciencesite.com. 140