The globalized world is in constant and fast changing, generating instability and uncertainty for companies established in this scenario. It’s vital for companies to use knowledge to increase the capacity of innovation and reinvention in accordance with the external environment. With the development of transactions and Initial Public Offering (IPO) of organizations ally with accounting scandals, two strands gain strength: Corporate Governance and Audit. The importance of transparency and reliability in the provision of accounts becomes inevitable. The main problem in this study lies in the discussion and conclusion on the importance of Audit to Corporate Governance in the theory and practical.