This article deals to evaluate the loan market structure and Iran banking facilities and power factor monopoly based on Bresnahan’s Lau approach. Current research was studied Iran's monetary market status during 2005–13 which contains 18 active banks. They all formed the money market situation in Iran by making use of Bresnahan's market power model, was determined that there is no loan market for the active banks in Iranian banking industry. The estimated coefficients of the research model using generalized method of moments (GMM) show that the hypothesis of perfect competition without any withholding rates and loan rates can be rejected for the entire market.