This paper deals with the issue of audit risk and their proper management. As part of this, one of the methods in the audit, "risk assessment matrix" as one of the most used risk management methods. Views and explanations of different matrices that were used during the research of some companies were added. In addition to the method, the topic will elaborate a good risk management process and outline some of the steps to be followed when assessing the risk. A good risk assessment is the basis on which each company builds its defense measures to prevent these risks from happening again in the near future. At the end of the work, an example of a construction company was added, which shows the basis on which this company investigates and prevents the audit risks involved in their business, and we will blur the application of the risk matrix in the audit of financial statements.