This paper investigate Residual Earnings, Discounted cash flow and adjusted earnings methods for achieving fair value and comparing with value of companies on Initial public offering in Tehran stock exchange(TSE) . Research hypotheses have been tested by t-student, Wilcox on signed-rank and R-square (parametric or Nonparametric) Statistics. The conclusions of this research indicate, there isn’t a significant difference between fair value of companies based upon Residual earning procedure and average fair values of companies on Initial public offering, but there is a significant difference between estimated values by discounted cash flow and adjusted earning procedures comparison with average value of companies on initial public offering. Moreover, There isn’t a significant difference between fair values of companies based upon Residual earning and discounted cash flow and also discounted cash flow and adjusted earning procedures. In the other hand, there is a significant difference between fair value of companies based upon Residual earning and adjusted earning procedures.