The influence of hybrid rye production technology on the amount and structure of energy inputs and the energy efficiency index of production were compared in a field experiment. The level of energy inputs is mainly determined by materials, including mineral fertilizers, which account for about 85.6% of accumulated energy invested in the production of rye. The required energy inputs in the form of fuel constitute approximately 12.3%, and in the form of aggregates – 2.1%. The amount of energy inputs necessary for the production of hybrid rye totals 17.52 GJ·ha-1 on average, while resigning from mineral fertilization in the spring reduces this value to 14.12 GJ·ha-1. The most favourable energy efficiency index in the production of hybrid rye, following winter rape cultivation, was recorded when no nitrogen fertilization was applied in the spring.