Abstarct: The main purpose of this study is to estimate the function of copper consumption using the Johansen approach in time series data, between 1991-2011 in Iran. The literature review of specialized consumption and demand functions, suggests the factors influencing the consumption of copper, including copper price variables, aluminum price as a substitute commodity, oil price as a supplement commodity, and industrialization intensity. For this purpose, raw data from the World Bank and International Copper Study Group, have been used to extract the initial data needed for the current study, and then research variables calculated in a seasonal manner and applied. In the next stage, using Vector Autoregressive, Johansen cointegration test, and vector error correction model, the existence of long-run cointegrated equilibrium relationship is surveyed by vector error correction model. Model estimation results show that the relationship between industrialization intensity variables and price of substitute product (Aluminum) with copper consumption ratio was direct and significant, also the relationship between copper prices and complementary commodity price (Oil), during the review period in Iran, was negative and significant. Among the most important practical results of this study should be noted that aluminum and copper prices can impact the copper consumption, and being aware of this can influence making copper sales contracts domestically and abroad which have to be considered by copper manufacturers in Iran.