The assessment of the energy requirements of the rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system was carried out at the research farm of Project Directorate for Cropping Systems Research, Modipuram, Meerut during the year of 2000-01 to 2003-04. The different weed management practices viz. hand weeding twice, herbicides + one hand weeding, criss-cross sowing + one hand weeding, criss-cross sowing + herbicides + one hand weeding, unweeded check were subjected in rice-wheat system to assess the input energy, output energy and net return of energy with two seedbed preparation practices as stale and traditional methods. Results revealed that the total input energy utilization was varied from 50820 MJ/ha to 52583 MJ/ha in stale seedbed and 50820 MJ/ha to 52724 MJ/ha in traditional seedbed for treatments unweeded and criss-cross sowing + herbicides + hand weeding once, respectively. The energy use by fertilizers represented the major part of total input energy accounting about 40 per cent followed by irrigation about 35.5 per cent in all treatments. The energy utilization for weed management was found slightly higher in traditional seedbed which varies from 925 to 1788 MJ/ha than stale seedbed which varies from 768 to 1364 MJ/ha in all treatments and it was accounting 1.47 to 3.40 per cent of total input energy.