In order to study influence rules of different factors on biomass pyrolysis characteristicsdeeply and optimize of biomass pyrolysis char process parameters, in this paper, takes three maincrops straws and five kinds of animal manure as major raw materials for agricultural biomasspyrolysis in northeast of China(Heilongjiang Province, Jilin Province, Liaoning province). Basedon industrial composition, analysis of elemental composition and calorific value, use thethermogravimetric (TG-DTA) analysis, systemic e...