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Sensible assessment of energy utilization potential of agricultural biomass is the basis of development of biomass resources.Based on low heating values of agricultural waste and biogas produced by waste of livestock and fowl, equivalent standard coal mass flows were assessed;the models of energy development potential of biomass resources were built on the base of introducing the main biomass heat supply and power generation technologies and efficiencies.According to the distribution and quantity of biomass resources in Henan province, equivalent standard coal mass flow of biomass could be 27.51 millions tons;annual potential power generation and annual heat supply potential could reach 48.62 billion kWh and 1.67 × 107MJ;22.51 millions tons of standard coal could be saved every year.It shows that agricultural biomass resources have huge energy utilization potential and the biomass heat supply and power generation technologies have broad development space.