According to the management theories and principles, the "science of management" contains four steps: policy making and planning, organizing and structure, leading and monitoring and evaluating. No matter how large or small scale your organization may be, you need to pay full attention to these steps (in addition to the environmental factors) if you would like to achieve an acceptable level of the management process. Inefficiency of the process of the Iran's economic management for the past three decades is something that the top executives, elites, and the public are all aware of. The economic indicators and variables such as the inflation rate, unemployment,. Unfair (country's income) distribution, the poverty rate etc are all a few of many reasons which could confirm the above claim. Although there are different other factors, that also could have contributed to this inefficiency, however, the oil income and its injection into the country's budget with the title "government" is being studied carefully here as a "very influential fact." Based on the research assumption the injection of the oil revenue into the government's and then spending it by the government, has had important influence on causing this inefficiency. The survey method has been employed to investigate the mentioned assumption, and after determining the statistic sample, their opinions regarding the assumption were gathered and analyzed. The sample was chosen so that it can be much knowledgeable about and well familiar with the subject being researched and were acquainted with "mechanism of the oil income distributor throughout the country" for at least two years. The statistic sample includes: all the ministers of commerce, economy, industry, agriculture and Jihad, and management organization" executive, and the chiefs of the economic as well as the planning and budgeting committees of the parliament for the past thirty years. The researched assumption was confirmed after classifying, analyzing, and performing the required tests, and it was concluded that the existence of the oil income, as an income provided to the government, has had a very large effect on the inefficiency of the economic management of Iran. To disrupt it this flow must be hindered and a new mechanism must be designed to be able to inject revenue into the country's economy and the private sector.