This study aims to identify and examine the development programs adopted by Algeria following the severe oil economic crisis that affected the national economy during the second half of 2014, which led to a decline in national revenues due to the collapse of oil prices in global markets. It also seeks to assess the extent of their contribution to national economic diversification. The study concluded that development programs contribute to the diversification of the national economy through the development and promotion of alternative non-oil sectors, thereby helping to build a solid economic base بعيد from the risks of external crises...