The aim of this study is to investigate the impact of the agricultural sector on the economic
development in Algeria, The present Study relies on The Co-integration Methodology to determine
the impact in Short and Long Run by applying The Error Correction Model ECM. This Study is based
on Econometric approach to measure the impact of agricultural sector on the economic development
in Algeria, during the period (2000 to 2012). Eviews-5 program is used to analyze the results.
Using an ECM test, the results show that agricultural sector no important Impact on the
Algerianeconomic development in the long term. On the other hand, the industrial sector has a
Positive Impact on economic development. And this is due to the continuation of the Algerian
authorities to focus on the industrial sector in general and the oil sector in particular, which led to the
neglect of the agricultural sector and declining in agricultural productivity “de-agriculturization”
caused by the effects of the Dutch disease.