Balance sheet itself does not specify and show all the activities that a bank pays. Because banks can do many swap contracts and obligations, exchange, and commitments Outside of the balance sheet. To such activities and exchange that will not appear on the balance sheet, are saying off-balance sheet activities. These items are usually reported in the notes to the attached financial statements. One of the reasons for conducting the activities of off-balance sheet by the banks is the interest rate risk coverage. However, the use of these tools for risk management leads to multiple different sorts of risk and that the overall judgment about the outcome of the risk management of the off-of-balance sheet activities has met with ambiguity. The present research has examined the relationship between risk and the items of off-balance sheet under the hypothesis of Adverse selection with the use of the Iran's nine commercial bank data. The results show that this hypothesis isn’t able to respond off- balance sheet activities behaviour in Iran