This research aims to identify the impact of some economic variables in the value added in the industrial sector in Algeria, such as gross fixed capital formation, the number of workers in the industrial sector relative to the total number of employees in the economy, total expenditure on the industrial sector, and the energy used in the industrial sector, and through the use of multiple regression style analysis in the normal way and the way step by step Stepwise , and using the statistical software Eviews, the researcher found a set of conclusions the most important was to check the premise of search as there is a strong influence on the value added in the industrial sector by Alawaml almatherh the research and through their association with a positive relationship between him, according to the coefficient of determination in the regression analysis in the model R-Sq, which amounted to 93%. And also concluded the dependence of the economy of Aldzairaaly one sector is the oil sector, prepared by the rentier economies, and that there is a large variation in the growth of each sector a component of GDP in Algeria sectors, but the biggest dependence is on the extractive industry sector, mainly in the time that remains in it the contribution of other key sectors which can be considered important and vital agriculture as a sector or the manufacturing industry in the structure of GDP is weak and marginal decline and this is reflected in the growth of other economic sectors outside the extractive sector and the low percentage of its contribution to the gross domestic product.