Energy in agriculture is important in terms of crop production and agro processing for value adding. Canola is one of important rapeseed that it is tilled in dry farming systems in north of Iran. This method in an agricultural product system is the energy consuming in product operations and energy saving in produced crops. In this article, evaluation of energy indices under rain fed farming canola in north of Iran (Guilan province) was investigated. Data were collected from 72 farms by used a face to face questionnaire method during 2011 year in Guilan province. By using of consumed data as inputs and total production as output, and their concern equivalent energy, and energy indices were calculated. The average seed yield of canola was found to be 780 kg/ha and its energy equivalent was calculated to be 1820 MJ/ha. Energy efficiency (energy output to input energy ratio) for seed in this study was calculated 1.29, showing the affective use of energy in the agro ecosystems canola production. Nonrenewable energy was 94.48% total input energy that concluded that canola production needs to improve the efficiency of energy consumption in production and to employ renewable energy.