The ongoing study aims at a brief pathology on saving in Iran's private sector. The factors effect on saving in private sector have been introduced, including oil revenues, real interest rate of banking long-term deposits, ratio of stocks transactions value to Gross National Production (GNP), proportion of employed population to total population, Inflation rate and Gini coefficient during 1974-2007 term. Then, we tested the hypotheses by using model of the least-squares method. At last, after elimination some of insignificance variables, the presence of positive effects in oil revenues growth and the ratio of the employed people to total population, and the negative influence of increase in banking long- term deposits' real interest rate on saving through private sector were verified. With respect to classic models in which interest rate positively affect on saving, it was verified in the current study that there was a negative relationship between real interest rate of banking long-term deposits and saving in private sector so it requires note that Iran's special economic conditions and the existing high inflation which are higher than banking deposits rate for the most occasions, led banking real interest to be negative and reject of Classics Theory in Iran.
JEL classification: E21, E62, O16